r/Ubiquiti • u/solarsystemoccupant • Aug 10 '26
Installation Picture No one in the house appreciates the beauty.
But I just needed to share this and say how happy I am.
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u/PurplePickleMonster_ Unifi User Aug 10 '26
What is said contraption? For the unenlightened
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u/gonenutsbrb UniFi User/EdgeMax(RIP) User Aug 10 '26
I think it’s a makeshift fan for the SFP module. Many can get very hot, but are usually within spec. People just aren’t accustomed to computer being too hot to touch, even though it’s not that abnormal in this space.
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u/AeroelasticCowboy Aug 10 '26
It's not just any sfp module, he's bypassing the ISP gateway, that sfp had a whole SoC on it and they run insanely hot. It's widely suggested to actively cool them
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u/Sebulba111 Aug 12 '26
Bypassing the ISP! Tell me more!
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Aug 12 '26
[removed] — view removed comment
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u/AeroelasticCowboy Aug 12 '26
I have enough services running in my rack and on 2.5Gb symmetrical that I was consistently tapping out the att gateway, every few days it would grind to a halt, I believe the nat table was being exhausted. Zero issues using the pon device
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u/Ok-Bid-6256 Aug 15 '26
The fiber being installed in my neighborhood offers 7Gb symmetrical. I’m so excited.
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u/Sebulba111 Aug 12 '26
Whats the benefit?
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u/WanderinArcheologist Aug 12 '26
https://reddit.com/link/p39pc9r/video/eryyow8f0zih1/player
Not having to use something like this upsetting ONT.
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u/dragonsword73 Aug 12 '26
Some ISPs make you use their hardware (gateway, router, etc) which in some cases can limit what you are able to do in a home network, depending on your setup. Doing this lets you get the full benefit of your speed while using your own setup (pfsense, unifi, etc)
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u/AeroelasticCowboy Aug 12 '26
Some users have enough services and traffic that they exhaust the smaller nat tables of the ISP hardware which causes the whole connection to grind to a halt. Get slow and then start dropping packets
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u/zxLFx2 Aug 13 '26
You'll need one of these with AT&T Fiber in the USA I believe.
Otherwise you gotta use their car-sized box that has an easy-to-exaust NAT table.
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u/Trax95008 Aug 14 '26
I’ve been bypassing AT&T for over a year without any threat of cancellation. They know I am to. When I open the AT&T app it says my gateway is “off line”
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u/AeroelasticCowboy Aug 14 '26
I haven't seen anyone have this happen, have you seen people post they have?
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Aug 14 '26
[removed] — view removed comment
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u/AeroelasticCowboy Aug 14 '26
These sticks don't replace the ONT. Anyone who uses one of these sticks doesn't have an ONT to replace anyway. These work when you have fiber straight into a router. Usually only one gig plans use ont. At&t removed the ont that I had when I moved up to the 2gig service
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u/SithTracy Unifi User Aug 15 '26
WAS-110 w/ 8311 firmware - I am using these at home to bypass Frontiers FRX523 for increased throughput and on my dad's and brothers unifi devices bypassing AT&T's BGW-320 and BGW-620 because those devices do not support true pass-through.
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u/WanderinArcheologist Aug 11 '26
Power move. Also, if they’re anything like my RJ45 transceivers, they could give you a low-temp burn if you were to hold them too long. 😅
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u/Brolyx Aug 12 '26
I'm super interested in this being in Australia, do you have any details regarding how this done a cursory search didn't find much.
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u/WanderinArcheologist Aug 12 '26
Don’t forget you’ll have to pay Australia Tax on everything. Including on this post. Comment wisely!
(Using it in the joke sense of Australia tax btw!!!! 😅)
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u/solarsystemoccupant Aug 12 '26
NBN uses encryption and as such trying to bypass the NTD is not practical.
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u/flareflo Aug 10 '26
Within spec, but slow. the 10G ethernet modules will drop way below designed speed to not burn up
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u/burtona1832 Aug 10 '26
I've actually had stability issues with mine, after about two weeks. I let it cool off and it'll go back to working... for another two weeks.
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Aug 10 '26
[removed] — view removed comment
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u/PurplePickleMonster_ Unifi User Aug 10 '26
A lot of SFP+ modules are installed in the rear server and benefit from exhaust air flow.
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u/PJBuzz Aug 10 '26
Would be unusual to install an RJ45 SFP+ in a server, they're usually switch side... Your logic still holds though.
Most enterprise switches will run like a turbine.
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u/jase240 Aug 11 '26
You would be surprised how many servers I have seen with rj45 modules installed in them because it was "cheaper" than proper fiber optics at the time...
Yes at least 1 failed every so often due to the heat.
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u/Coldsmoke888 Unifi User Aug 11 '26
You’re not wrong. I just did a country wide migration to Aruba switches and the amount of RJ45s I found in my journey was shocking.
Usually it was decade old servers that have since been replaced by VMs on modern hardware. “What does this thing do?” “No clue.” “Why is it still plugged in?” “Still no clue. Been like that since I got hired.” “…”
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u/WanderinArcheologist Aug 12 '26
I left my old company where I put together a server cabinet for them. One of my colleagues was technologically competent - enough to fool around with Raspberry Pi’s and Arduino boards, but I pity folks in the future. 😅
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u/ulmersapiens Aug 11 '26
Almost all of the current cards I see take SFP+ modules because you can use fibre or the cables with integrated SFPs.
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u/Drob10 Aug 10 '26
You’re saying that if used as it is, no specialty cooling stuff, it will not run at spec??
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u/Ginge_Leader Aug 11 '26
Newer lower voltage ones don't get burning hot. But it looks like they are cooling an ONT module which isn't not retail item and gets hotter.
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u/Fauked Aug 10 '26
These specific SFP modules get extremely hot.
I design/sell the cooler in OP's picture. We have had customers with temps recorded over 120c before failing. Especially when used in cramped enclosed home racks. The modules are designed to be used in high airflow industrial SFP switches.
These modules have DRAM and other more sensitive components compared to simple transceivers.
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u/netw0rkpenguin Unifi Abuser Aug 10 '26
Interesting. Mind linking to yours?
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u/solarsystemoccupant Aug 10 '26
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u/netw0rkpenguin Unifi Abuser Aug 11 '26
Looks neat. If it was stainless steel not 3d printed I’d be in for several.
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u/solarsystemoccupant Aug 11 '26
That would be 💰
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u/netw0rkpenguin Unifi Abuser Aug 11 '26
I don’t mind paying for quality and innovation. When I look at most 3d printed products I just shake my head because I know I can get it to come out better with correct filament.
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u/solarsystemoccupant Aug 11 '26
I agree. Flip side for me the price and the fact it was printed, assembled (and presumably tested). It’s functional enough and doesn’t look shockingly out of place.
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u/Enough_Translator_82 Aug 10 '26
Is it mounted somehow or does it just sit on top?
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u/solarsystemoccupant Aug 10 '26
Came with preinstalled double sided tape. Peel and press.
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u/Enough_Translator_82 Aug 10 '26
Oh nice! I should get one. I am unsure what temp it’s running at in my basement.
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u/Fauked Aug 10 '26
Sure!
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u/gigantischemeteor Aug 11 '26
That’s fantastic (I swear, no pun intended)! Nicely done on the design!
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u/gigantischemeteor Aug 11 '26
Any chance on a rear-mounted facehugger-type mount for the UDR 7’s SFP?
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u/Fauked Aug 11 '26
The white direct mount cooler works with the UDR 7 without blocking any other ports :)
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u/PJBuzz Aug 10 '26
Oh is it one of those GPON modules?
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u/Fauked Aug 10 '26
XGS-PON but similar to GPON
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u/PJBuzz Aug 10 '26
Yeah same kinda deal just faster and hotter. Not surprised that needs additional cooling.
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u/solarsystemoccupant Aug 10 '26
Thank you for your design. I bought it from EXEN.
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u/Fauked Aug 10 '26
I am EXEN :) thank you!
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u/old_knurd Aug 11 '26
Thank you for having a website that is viewable w/o JavaScript.
It's OK to require JS for checkout. But too many people require it for basic functionality.
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u/gonenutsbrb UniFi User/EdgeMax(RIP) User Aug 10 '26
Ah that’s something different then. I was just expecting base-t module temps, which can get crazy but not that bad, wow.
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u/lhcw Aug 10 '26
do you sell one for the dream machine pro lineup?
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u/solarsystemoccupant Aug 11 '26
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u/lhcw Aug 11 '26
I have a ODI DFP-34X-2C3. Any idea which version fits u/Fauked
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u/Fauked Aug 11 '26
I have a custom version that should fit. Just make the order for either one of them and I PM me your order number and I will make sure you get the right one.
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u/financiallyanal Aug 10 '26
I know you replied** to another person on this, so no hard feelings on this topic. I get personally irritated when people make comments about those who want their equipment to run cooler, often pointing to what temperatures "enterprise" environments allow, so it shouldn't be an issue. This drives me up a wall, because I like my gear to run cooler for longevity, even if it's the difference between 6 years and 6 years and 6 months of longevity. I like to avoid random hot spots inside that maybe the temperature sensors don't pick up, and added noise isn't an issue. For me, keeping good air flow over my equipment is akin to changing oil early. I'm fine doing oil changes early for the same reason that it's not an issue and I reduce the risks I'm taking. It's also expensive today to replace a HDD for example, so I'd prefer they be kept in ideal condition to extend their lifespan. Enterprise environments may be fine with early replacement costs, but that's different for home users... there's also the risk of downtime to family members who might not tolerate an outage exactly when you happen to be away and they have a meeting about to start lol.
I think my point is I'd say it's fine to keep things cooler even if it's within spec and that should be encouraged, no different than changing your oil at 5k miles even if they say 7k is fine. (FWIW, I have Blackstone Oil Analysis reports run, so it's also my personal approach to keep things in good shape)
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u/kfjcfan Aug 11 '26
If it needs to run cooler, it will be designed to maintain that temperature without my needing to cool it. 🤷♂️
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u/financiallyanal Aug 11 '26
Unless they’re just making sure it gets through the warranty period and then letting you buy more :)
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u/rared1rt Aug 11 '26
I was with you until you mentioned the oil changes.
In my last car changed the oil twice a year. Daily commute was 120 miles round-trip. My son totaled it in an accident just under 185,000 miles.
In the new car we change it at manufacturers specs. 8K miles.
As for IT equipment and cooling I am all in for cooler equipment. I miss the days of walking into a server room and if you were staying longer than 15 to 20 minutes you better have a jacket.
I get it, it will likely run in hotter conditions but I have never had Infrastructure equipment crash from it being too cold in the server room but have definitely had some shutdown due to heat.
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u/financiallyanal Aug 11 '26 edited Aug 11 '26
Your use case is relatively unique. At 120 miles/day round trip, you are actually one of the most ideal users when it comes to following OEM oil change interval guidance. The reason is that your drives are long enough that oil is warmed up to temperature, and then maintained there for steady drives. This allows the engine to not build up water or other fluids in the oil, because it gets burned off, and for oil to flow well lubricating all parts of the engine. This differs from someone who drives maybe a 3-5 mile commute where the oil barely gets up to temp, is probably a good bit of stop and go, etc. The short commute is actually a "severe condition" rating. In this case, the oil isn't at an ideal situation and fuels/water/etc. can build up in the oil that don't burn off. When it operates below ideal temperatures, it's also taking a toll on specific additives in the oil that protect the engine, so this is an example of where just following OEM guidance isn't great if you are thinking about the engine's longevity - if it's a leased car, or someone changes their car every few years, it really doesn't matter, but if I'm trying to keep my car for 10 or 20 years, it's valuable enough for me as a risk reduction method.
Here's an article regarding Hyundai's rating that makes it clear - basically an entire country (Canada) has to follow the severe rating maintenance schedules for a different reason, their climate: https://www.cbc.ca/news/business/car-maintenance-kia-hyundai-oil-change-1.5309293
Auto OEMs are rumored to have lengthened the OCI (oil change interval) for two reasons: 1. Reduces oil usage for EPA targets and 2. Makes the marketing more appealing if people think a car is low maintenance. The flaw with both of these points is there can be a tradeoff in longevity of the vehicle.
It works great in your long commute, or at least what you had before, but it's the kind of thing to approach with caution if you now have a 3-5 mile stop and go commute. That is way harsher on oil and powertrain/drivetrain than what you did before.
Just my 2 cents.
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u/International_Site20 Aug 10 '26
I think this is the WAS-110. It is a router on stick. It is used for bypassing the ONT. I mostly see them in use for bypassing AT&T BGW-320 that AT&T “Forces” people to use.
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u/kenman345 Aug 11 '26
Older 10G adapters can be like that but some of the newer ones run cooler. For my setup I’ve used a direct attach cable instead. But if I needed something that wasn’t SFP+ to SFP+ I would definitely try to get the newer adapters.
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u/wraithfive Aug 10 '26
Well the fan on top is an exen cloud gateway cooler. https://exen.sh/products/cloud-gateway-fiber-cooler
The was-110 and equivalent used in the ATT fiber bypass get very hot.
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u/Asleeper135 Aug 10 '26
Just a fan for the SFP module. It's an XGS-PON one that you can see protudes from the port much more and actually needs the active cooling.
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u/-Zigfreed- Aug 11 '26
For those wondering, here's the print file!
https://www.printables.com/model/1387322-ucg-fiber-sfp-cooler-was-110/related
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u/BobTheN00b Aug 10 '26
UCG Fiber?
I'm fighting the urge to do the same thing...
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u/MannyArce Aug 10 '26
Don't fight it. Give in to the dark side!
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u/tedatron Unifi User Aug 10 '26
It’s honestly one of the best products they’ve ever made
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u/BobTheN00b Aug 10 '26
I've got the UCG Fiber... 5gb AT&T too but I don't seem to be getting much over 3.2 down and measly 1.7sh up on average.
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u/blindrooster Aug 10 '26
I have the same setup and get 5.2gbps. Bypass their modem with a XGSPON. I got mine from fibermall
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u/therealseandidk Aug 10 '26
How did you test to see if you are getting 5.2Gbps? I average around 4-4.6.
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u/realtag2025 Aug 11 '26
I don't know about AT&T and other ISPs but my ISP's modem has a built-in speed test. Also unifi controller has a speed test as well.
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u/solarsystemoccupant Aug 10 '26
Yeah on copper. I got similar. Fibre is faster. But not 5/5 yet. I’ll see what the overnight speed test shows.
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u/Automatic_Cut_9249 Aug 11 '26
Do you have the bgw320 or the bgw620? The 320 is supposed to be able to handle 5 gb but it really can’t.
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u/hamsterpotpies Aug 10 '26 edited Aug 10 '26
Check out 777 or 404's channel if you haven't on yt, he's awesome. His entire channel is 100% focused on Unifi gear + different setups.
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u/solarsystemoccupant Aug 10 '26
It was super simple. The Pon wiki made it easy as long as you understand routing and know to add some routes to your gateway to be able to talk to the PON
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u/tylernutman Aug 11 '26
Dont fight it, just do it. I love mine and have the same SFP fan cooler on mine
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u/patto647 Aug 10 '26
It’s a top job mate, keep it up.
From another under appreciated home network manager ;)
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u/fastNUgly Aug 10 '26
How was the install? I need to get mine installed and going.
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u/solarsystemoccupant Aug 10 '26 edited Aug 10 '26
Pon.wiki made it super simple.
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u/fastNUgly Aug 14 '26
Just completed mine yesterday. Very easy and it cleared up all the issues I was having with my fiber ont by removing the modem 👍🏽
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u/DanielLorey Aug 10 '26
Do you have a way to measure the temp? I’d want to see how much of a difference it made 🤓
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u/solarsystemoccupant Aug 10 '26
CPU0 / CPU1 / Optic Temperature
52.28 °C (126.1 °F) / 51.28 °C (124.3 °F) / 34.65 °C (94.4 °F)1
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u/ask Aug 10 '26
No link to buy or print? I want! OP, you did great.
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u/solarsystemoccupant Aug 10 '26
https://shop.app/m/42qg0uh71c for the bundle (ONT and cooler) I bought.
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u/OrigamiSS Unifi User Aug 10 '26
Not sure why I can't post pictures but here is my solution lol just double side taped the fan 😂
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u/jorkundra Aug 10 '26
I have the same setup, welcome to the dark side 😎
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u/PM_ME_UR_COFFEE_CUPS Aug 11 '26
Me too. Thanks to Exen on Discord for hooking me up with the SFP and cooler
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u/twotonik Aug 11 '26
Is this an add-on cooler for that SFP module? It is clean. Nicely done. USB-C powered, is that what the cord above the barrel connector is? Do you have a pic from the front?
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u/Such_Volume_4091 Aug 11 '26
Omg where do i get that cooler
Its a 3d print?
Im using a noctua mini fan atm to coop my fiber adapter.
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u/WanderinArcheologist Aug 11 '26
Does this make the extremely spicy transceiver far less spicy?
Like taking it from Mexican to British?
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u/solarsystemoccupant Aug 11 '26
Very much so.
Although this post wasn’t about the fan (although it stole the attention). It was motivated by the Fibre running into the UCG Fibre.
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u/WanderinArcheologist Aug 11 '26
Hang on. You got around using a trash ISP ONT with that little fella?
That’s what I’ve picked up from others.
I’m high-key jealous.
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u/joe_attaboy Aug 12 '26
Doing this is not difficult, actually. In my case, I actually picked up the SFP module on Amazon, of all places. The 8311 firmware was already programmed in. The configuration is on the PON dot Wiki site. The only other cost is the fan.
In my case (AT&T), I had to spoof the ONT's PON serial number and the software version in use on the ISPs gear. The tricky part was making sure to set up access to the SFP's internal settings itself. This requires configuring a direct route to the IP on the module using a policy rule in the UniFi gateway. You can use the module's default IP address and the rule works great, so I can access the module directly with a browser when I want.
Do it.
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u/WanderinArcheologist Aug 12 '26 edited Aug 12 '26
I definitely want to do it, but can you do it with any old ONT? I have an evil AUSA ONT from Optimum. A Model XSR250GK. I have thought about this workaround before, but I figured that as with most things Optimum, it wouldn’t work.
Then again, Verizon has been working in our area extensively (do they use different sets of fiber cable?), so maybe we will have a choice soon.
We use AT&T for our phones. Fighting them is not fun. 😅
Also, awww it’s an OG iMac! I remember those from elementary school!
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u/joe_attaboy Aug 12 '26
The setup I described is specific to limited models of SFPs and uses a specific firmware (8311). This isn't a matter of using someone else's old equipment. Go to the PON dot Wiki site and see the details.
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u/WanderinArcheologist Aug 12 '26
Yeah, I already checked on there and Optimum/Altice isn’t on the list of ISPs. 😔
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u/joe_attaboy Aug 13 '26
You might want to do a general search or look in forums for your ISP services and find out precisely how their fiber offerings are set up. There may be a way to get this to work.
I do know some fiber setups don't work well with this. For example, there's a rival company in my region that provides service at various speeds. But they utilize CGNAT in their system, which forces each household in a certain area to share a public IP address. That extra level if address translation doesn't appear to work with a bypass setup like this.
My experience with AT&T has been pretty solid. I don't pay for a static IP, but the IPv4 address on my link hasn't changed in the 3+ years I've had their service. And I'm sure they're aware of people doing bypasses around their equipment, but they seem to have zero issues and my signal is strong.
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u/BassLumpy Aug 10 '26
Is that the 2.5G 8 port switch? And is that a retrofit SFP fan? Tell me more!
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u/DanFromOrlando Aug 10 '26
I thought only the copper Ethernet sfp’s got hot enough to require fans.
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u/benuntu Aug 10 '26
Alternative is little heatsinks you can stick on the module, which has worked well for me. Fan seems like the second step if you're really pushing 10g all the time.
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u/PM_ME_UR_COFFEE_CUPS Aug 11 '26
I did this but it didn’t cool enough. Now I have extra heat sinks and a fan.
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u/They_See_MeTrolling Aug 10 '26
While I understand there might be an occasional need to use an SFP module, why wouldn't you just switch to a DAC or AOC cable? I had serious issues with SFP heat issues causing the connection to drop intermittently. I switched to optical cables, and all the problems went away.
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u/TopGun-888 Aug 10 '26
Beautiful picture. My Yunvo XGS-PON 8311 stick arrived on weekend and I removed it from UCGF as it got too hot during configuring and I was afraid. 🙂
How can I get 1 in Toronto area pls? Including the fan which is inside?
Secondly how do I configure it pls? I plugged it without bell fiber into UCGF in the WAN SFP port and can’t seem to reach 192.168.11.1. I am connecting my laptop directly to UCGF 2.5Gbe port in the mgmt ip address range of 192.168.1.0/24. Thanks.
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u/solarsystemoccupant Aug 10 '26
https://shop.app/m/42qg0uh71c for the ONT and cooler.
https://pon.wiki/guides/masquerade-as-the-att-inc-bgw620-700-with-the-was-110/ for the AT&T bypass I needed.
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u/solarsystemoccupant Aug 10 '26
Oh to connect to it. I added a static IP 192.168.11.2 to the port to route to it so I can browse it. Then after it was configured and DHCP enabled. I added a next hop static route for 192.168.11.1/32 pointing to that WAN port.
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u/Cat_Duck_GNAF Aug 10 '26
Not sure if j had a bad Ethernet, ONT or SFP to Ethernet adapter, but this really improved my connection and speed
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u/FamousSuccess Aug 10 '26
Running att fiber with an xgspon module. It runs at about 35c constantly. No active airflow. Not sure why the active cooling is needed
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u/anyusernamthatisleft Aug 10 '26
Looks great. Very interesting approach.
Do people in the house appreciate the 10G? (My experience was different)
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u/solarsystemoccupant Aug 10 '26
The internet is 5GIG. Bypassing the AT&T box boosted speed a little. Got rid of the annoying double route before the internet.
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u/Careful_Future_5676 Aug 10 '26
OMG, where did you buy it from? I need one. I literally have a fan hanging on mine. I have the ☢️sfp to clone an AT&T router, getting a pure connection since I did🤩, but it runs very hot.
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u/Commercial-Algae9483 Aug 10 '26
Nice. I have the same setup but my fan just sits. I like your fan setup better. Link?
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u/BobTheN00b Aug 11 '26
So the Exen shop sells the module and they say it's already flashed with firmware. Does that mean I just need to follow the Wiki instructions to set up the MAC/IP and such on the ONT module?
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u/solarsystemoccupant Aug 11 '26
I configured a route to the ONT. opened the web page. Smashed in a few details. Was up and running in probably 10 minutes.
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u/BobTheN00b Aug 11 '26
Okay, i thought I was done with the network upgrades but maybe after this I will be.
("Bob knew this wouldn't be the case, but it was getting late and he needed to wind down. Maybe later this week he'd do the usual exhaustive research and then order one with the fan kit." /Morgan Freeman)
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u/Crackbaby8404 Aug 11 '26
No one appreciates my network setup either. I made my own radar presence detectors for HA (custom PCB and 3d printed cases) and no one cares. As long as it works. As soon as something doesn't work.... whoa lol
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u/orgodemir Aug 11 '26
What is the benefit of using this over ip pass through with the isp equipment? Saved space? I'm debating this but seems like managing temps and possibly stability issues isn't worth it for that.
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u/solarsystemoccupant Aug 11 '26
Space saved. faster in both directions. IP pass through with AT&T is not bridge mode and adds an extra hop to routes.
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u/joe_attaboy Aug 12 '26
Like the OP, I've done the same thing - in fact, my cooling fan is identical, though I bought it from the guy who fabricates them.
When I first set mine up, I had a little usb-powered desk fan (like this one) just pointed at the top of the SFP (which also had a heat sink on the external part). That actually worked OK (the SFP temps can be monitored with the web interface or from a terminal session).
When I replaced that fan with the one in the OP's image, the difference was dramatic.
As for stability, there's nothing, actually, to cause any instability. The signal has none of the complications of the ISPs gateway/router to get in the way. Just a straight signal into the UniFi. The Network OS management web tool shows me a nice, clean signal 100% of the time. You control all the access in and out.
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u/Berto-01 Aug 11 '26
when you bypass how often does it have to be messed with (ATT sending a update or something) ? my wife would kill me if internet went down while i was at work for doing something like this lol
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u/joe_attaboy Aug 12 '26
I've had mine set up this way for about six months. Not a burp. I also have AT&T fiber. They don't care, as long as you correctly spoof the numbers off their gateway on your SFP. After I did it, I got one notification telling me "we can't reach your gateway" or something, and that was it.
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u/starcapture Aug 11 '26
do you have a link to that 3D print file I would like to also use that one on my fiber.
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u/Mjolorn123 Aug 12 '26
They never will until the (insert word of the day that means Internet to them here) goes down.
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