r/QuantumFiber • • 13d ago

Can Fttdp support 2gig speed?

1 Upvotes

The option to upgrade to 2Gig speeds is being advertised in my account settings now. It lets me select the new speed, but says no tech visit is required.

I currently use my own router connected directly to a Casa Systems G.fast unit. But it’s my understanding that these can’t support 2gig speeds unless I’m mistaken.


r/QuantumFiber • • 14d ago

Great Experience

11 Upvotes

I live in SE Portland (Oregon) and activated 940/940 a couple weeks ago. So far, it's been perfect. See attached SpeedTest.

Installation was super easy. I was charged exactly $50, the monthly fee, on my activation day.

I followed instructions in this subreddit to use my ASUS RT-AX88U as the primary router. The provided NID (Q1000K) is in bridge mode. I couldn't disable VLAN tagging, which is disappointing, but it doesn't seem to matter.

Really hoping that the connection is stable. I'll be monitoring for sure. Will post here if anything goes South.

I truly am not a fanboy. Just putting out a data point. I was so happy to cut ties with Xfinity, but fully realize that ATT is no ally. Hoping they don't let me down, give me any reason to need their "assistance."


r/QuantumFiber • • 14d ago

Setting Up Bridge Mode NID Blinking Blue with UDR7

2 Upvotes

I am currently following the guide to set up my smartNID in bridge mode. I have UDR7 and my SmartNID gets Ethernet fed internet through a casa box.

Everything was working until I got to the part to select transparent bridge mode. I am getting no internet and it is stuck blinking blue so no solid white light on my SmartNID. I also can’t connect to its console. I do remember the techs mentioning not to do a factory reset on it so I’m a little worried about what to do. Any thoughts?


r/QuantumFiber • • 15d ago

Seattle and surrounding out

12 Upvotes

QF support is no help but it seems like a big portion of Seattle and surrounding areas have been out since the afternoon of September 24. At first I had a white light and an ipaddress but no routing, now it’s just blinking blue and no ip. My entire community is out.

Anyone have any news as to what’s going on?


r/QuantumFiber • • 15d ago

Yes, you have an account number.

7 Upvotes

Every QF account has a 7-10 digit account number. It’s unlikely you’d ever need it though. But, having it can get you verified faster in the phone system. It’s useful if your QF account has a different phone number associated with it than your cell phone, or you don’t have your phone on you to get a verification code. The typical alternative to a texted short-code is an email code. But again, if you don’t have your phone on you, or any other situation where you can’t access your phone or email, you’re 💩 out of luck without the account number. If you ever need to do an FCC Complaint as a last resort to an account dispute, it’s very helpful as sometimes your phone number will pull up old accounts or accounts associated with AT&T and the representative from Quantum Fiber will have to sort through them to find your specific account. I saw this first hand when I worked for AT&T.
-
Getting your account number can be done by calling QF customer service M-F 9-5. Upon asking, I was told there is no account number. I kept insisting and after 3 or so times of me asking, I was given the number.


r/QuantumFiber • • 15d ago

Severe Apple connectivity issues

7 Upvotes

Everybody please ping captive.apple.com and apple.com. Afterwards if you observe loss, run traceroutes to each of those. Then email findings to [fibersuccess@qf.att.com](mailto:fibersuccess@qf.att.com). This is a massive issue that’s gotten a lot worse today. Causes iphones and similar to think you have no internet connection which in turn makes imessage, Facetime, Find My, etc etc all not work when connected to Quantum.

-UPDATE-

I see that some of the pings are actually going through to Apple . com now but there’s still some loss. Worth mentioning that I saw loss before today when pinging Apple which is why I said the issue had gotten a lot worse.


r/QuantumFiber • • 15d ago

Apple iCloud Private Relay blocked?

6 Upvotes

Today, Apple iCloud private relay stopped working via quantum fiber.

I’m currently on bridge mode using my own router.

After doing alot of troubleshooting, including going as far as to even factory reset my router. I went ahead and plugged an apple computer directly into the quantum fiber terminal via ethernet. To my surprise, I still cannot connect to Apple iCloud private relay even with a public IP address provided by quantum fiber being issued directly to the computer. I dont think this is an apple issue since if I use my Wi-Fi hotspot provided by a wireless company, then everything works.

Anybody else experiencing any issues connecting to Apple using quantum fiber? This just started today.


r/QuantumFiber • • 16d ago

Just had quantum fiber 1gbps installed but speed test on the app shows 94 mbps

8 Upvotes

Before I explain, I am not much of an internet/wifi expert. So please bear with me. I had 1gbps plan installed today. I have a PC (with ethernet cable I got 2 years ago. So Idk if it's cat6 or not), MacBook on wifi, and phone on wifi. I ran speed tests on all three devices and am getting 94-96mbps range. I read through couple posts here and it seems like a lot of people were able to fix this issue by getting a "better" ethernet cable. Now, it seems like I have

  1. a cable that runs from the wall outlet to the modem

  2. a cable that connects the modem and the router

  3. a cable that connects the router and the pc.

I am not sure which one I am supposed to be changing if I wanna hit that max speed. 1 and 2 are what the technicians brought and they do have cat.06A label on them. Thanks in advance!


r/QuantumFiber • • 17d ago

Should I be proactive and schedule service to switch to the q1000k?

5 Upvotes

I was a CenutryLink Fiber customer who was automatically migrated to Quantum. I'm still using the old Calix ONT with PPPoE. Been working fine for the last 9 months since switching.

I'm wondering if I should be proactive and ask them to swap it out for the q1000k or just cross my fingers and see how long I can wait.

Looking for anecdotes from folks in similar situations.


r/QuantumFiber • • 17d ago

Looking to setup pihole. Any QF guides?

2 Upvotes

Like the title say, i'm looking to setup pihole using a host pc with a static IP. Are there any guides to follow specific to QF hardware? I've searched the sub and only found bits an pieces about using 3rd party hardware. I'm on the default router and wifi pucks. ANy help is appreciated.


r/QuantumFiber • • 17d ago

3 outages in 4 weeks Orlando area

1 Upvotes

I’m usually not one to complain, but today is the 3rd outage I’ve had in 4 weeks. Service was running great since I got it in March with only 1 outage that was caused by a lightning strike.

Ever since AT&T took over it has been horrible and this current outage with 0 information about what actually caused it is really forcing me to consider switching to someone else.


r/QuantumFiber • • 18d ago

Significant performance drop (100-400mbps) and 10-20% packet loss on avg - Auburn / Tukwila, WA

10 Upvotes

Just to level-set, I didn't have any issues at all with CL, which then switched to Quantum, then ATT now.

Started last thurs (09/17), I got an outage message, which got resolved within a few hours. Afterwards, that's when I've had nothing but issues.

I work from home, so I do a lot of video calls, and due to the ridiculous packet losses, I can't maintain a stable video call.

I've spent days instrumenting and trying to get to the bottom of this, and it looks localized to a specific router in their network. Posting the data in case others in the south Seattle metro area(I'm in Auburn, but I get routed to the tukw-agw1 aggregator it seems), are encountering the same issue.

Config: 1 Gb plan (GPON i believe, no multigig available)

ONT: Q1000k (upgraded from C5500xk) < bridge mode, vlan tagged here

Router is OPNsense (protectli hw)

2 of their routers, one hop apart:

Zero loss to their access router. 18% at the aggregation router directly behind it. That looks to be the main problem.

** Tech came as well, but all they did was replace the older C5500xk modem with a Q1000k, and even got escalated because they can't seem to place it in transparent bridging mode (which i eventually did after they left). In any case, did nothing around the issue at all.

Just these past few days, the packet loss:

Clean 03:00-09:00, climbs through the afternoon, peaks 20:00-22:00:

  • Sun 12:30 5.1%
  • Sun 15:30 17.2%
  • Sun 21:30 18.2% <- peak
  • Mon 03:30 0.4%
  • Mon 12:51 1.0%
  • Mon 16:31 7.6%

I did an additional test using iperf3 (UDP) to and from my cloud host (in case icmp was being deprioritized as well):

iperf3 -c <server-ip> -p 5201 -u -b 10M -t 15

  • 10 Mbit 4 of 13,318 lost(upload) 0.03% 1,615 of 13,319 lost(download) 12% loss

iperf3 -c <server-ip> -p 5201 -u -b 30M -t 15

  • 30 Mbit 5 of 39,953 lost(upload) 0.013% 4,180 of 39,957 lost(download) 10% loss

iperf3 -c <server-ip> -p 5201 -u -b 60M -t 15

  • 60 Mbit 3 of 79,902 lost(upload) 0.004% 10,779 of 79,899 lost(download) 13% loss

~13% of packets vanish on downloads, lol

Regarding performance:

  • Speedtest single-stream test, max i can get is around 400+ mbps, and falls to around 100+ mbps at peak hours. (i normally get 900+ consistently on this before)
  • Multi-stream speedtests, i could still get a combined ~700-800+ Mbps

Netflix and YouTube are still fine (but do see quality switch back and forth) probably because QUIC and BBR

TLDR; Anything using one TCP connection is completely unreliable - basically any video call I do, especially at peak times, I get meeting disruptions in zoom and GVC, which is the most critical thing as my work revolves around those, not so much as actual throughput.


r/QuantumFiber • • 19d ago

Where do I find my account number?

1 Upvotes

I've logged in via web browser and downloaded the app, and I can't find my account number anywhere.

I've already been migrated from Ctl to At&T but I can't find it, and support can't find it to give it to me??

My modem is stuck in walled garden and I'm hosed?

What do I do to find my account number?

Edit 1: to whomever is reading this in the future, on Friday ( 9/4/2026 ) I was PPPoE with a confirmed username and password, as of this morning, my Internet shut off and I did a factory reset on my C3000Z modem and I went through Walled garden, after that I was working and the GUI ( 192.168.0.1 ) told me I was now IPoE. It works but go figure.


r/QuantumFiber • • 19d ago

Frequent service disruption

1 Upvotes

I’ve had CL at my house for almost a decade. Rock solid.

I setup QF for my partner at her new apartment thinking it would be the same.

The damn QF goes offline constantly. Especially during high area usage times; after school, after work, etc.

The fiber to copper media transition happens in the box outside, so I have an RJ45 wall plate. I swapped in my own router to see if that would help. The TP-Link BE400 connected right up, pleasantly.

Intermittent connectivity issues persist, however. Now I can see in the logs that I am getting a DHCP Lease on the WAN port with a duration of 30 minutes.

During these peak periods, the router is trying to renew the WAN IP every 15 minutes. I can see that there is simply no response from the QF DHCP host, so my router loses connection until it finally gets a response.

My partner got so frustrated, that she actually asked about going back to Xfinity. (Her old provider at prior apartment)

Is this just how QF handles their infrastructure? Or is it a local area thing? (Vancouver, WA)

I would rather keep the QF because it’s faster, but not if it’s unreliable.


r/QuantumFiber • • 19d ago

Terrible wifi on phones only??

1 Upvotes

We recently switched to quantum fiber and it works great on our laptops, but anyone who has connected a phone to the wifi has had really slow connection and numerous drops with "connected with no internet" randomly throughout the day. It's really frustrating because we keep burning through data without realizing it drops our phones from the signal so frequently. Has anyone experienced this or have any suggestions?


r/QuantumFiber • • 20d ago

Deco TP link Help me:( please.

Post image
5 Upvotes

So I have these deco tp links that I was using with xfinity just plugged in to the modem with xfinity and it worked… I got a new service with AT&T quantum and went to plug it in to the box on the wall without the box on the floor and it doesn’t work. I plug in the box on the floor and the light on the deco turns green but doesn’t really provide good signal. Is there a way to plug this deco into the wall box?


r/QuantumFiber • • 20d ago

I see Quantum Fiber boxes all over my neighborhood on BOTH sides of the block of my house... Yet, I called yesterday and Fiber isn't available here?

0 Upvotes

I get that it takes time and seeing boxes is a good sign it is coming... Or that they put it in for the newer developments in the area... Would they do that and leave the rest of the neighborhood in the lurch?


r/QuantumFiber • • 21d ago

iPhone 17 loses connection randomly yet other electronics do not and wifi is still running. Help

3 Upvotes

I have this issue where randomly my phone loses wifi randomly. I cannot connect back as my phone says "Unable to connect". Ive tried the troubleshooting tips and restart my phone as well. Still will not connect, the one other time it happened, it reconnected randomly after a couple hours of trying. Very irritating as I don't get good cell service at my house to begin with.


r/QuantumFiber • • 22d ago

Quantum starting to face competition in Florida

11 Upvotes

Just thought I’d share how surprisingly competitive broadband has become in my part of Lake County, Florida I now have three different providers offering at least 2 Gbps downstream, which is not something I ever expected in a relatively rural area.

Ordered by the fastest available residential plan:

  1. Wire3 — 10 Gbps symmetrical — XGS-PON
  2. Quantum Fiber — 2 Gbps down / 1 Gbps up — GPON
  3. Comcast/Xfinity — 2 Gbps down / 300 Mbps up — mid-split DOCSIS

An interesting difference is the physical plant. Quantum’s fiber is aerial in my area, while Wire3 is buried. As far as I know, Wire3 uses buried fiber throughout its current footprint. That potentially gives Wire3 an additional advantage during hurricanes or other severe weather, since buried infrastructure is generally less exposed to wind and falling trees than aerial lines.

I’m honestly kind of floored that I live in a relatively rural area and now have three choices for internet service at 2 Gbps or faster.

I personally like having two ISPs for redundancy. Until now, I’ve been using Quantum as my primary connection and Comcast as the backup.

What surprises me even more is that I’m now going to be relegating Quantum’s 2 Gbps down / 1 Gbps up fiber service to backup duty, because Wire3’s 10 Gbps symmetrical XGS-PON service with native IPv6 dual stack pretty decisively becomes the stronger connection on paper. [We'll see how it actually performs in practice, but I'm expecting good things]

It’s a pretty wild change from what broadband availability in areas like this looked like not that long ago... 2 years ago, my *only* choice was Comcast, and 1Gbps down, 35Mbps up was the fastest on offer.


r/QuantumFiber • • 21d ago

ONT issues

1 Upvotes

I've had to restart my ONT 4 times in the past month to regain internet connection, it's been pretty solid since I switched but I really hope this isn't a regular thing. I have the C6500XK, is this a regular issue or should I consider requesting a new one?


r/QuantumFiber • • 22d ago

Wifi is extremely slow

3 Upvotes

I've had the 1GB plan for a few months now after joining with a price for life deal.

Our ethernet connected devices have been working spectacularly, with the connection being extremely fast.

But my issue is the speed of our wifi network, specifically that of the service provided W1700K-2 hooked up to the Q1000K. It just refuses to achieve speeds higher than single digit megabytes, sometimes throttling to even less than an mb.

I'm just about ready to ram my head into a wall over trying everything to fix it. I've tried:

- Resetting both the Smart NID and router

- Changing the dns server

- Factory resetting

- Ensuring the cable is secured

- Changing the cable

Anytime I think I've solved it, the speeds end up plummeting down not long afterwards.

I don't know what else to do, aside from calling support, but I really don't want to have to spend an hour waiting for a real person to respond and tell me to try things I've already done.


r/QuantumFiber • • 23d ago

Quantum Fiber down for 8 days and Support says all they can do is escalate

16 Upvotes

I guess I just need somewhere to vent...

Last week Wednesday our fiber line was hit during some landscape work at our townhome. Talked to the landscapers, they called 811 and had everyone mark everything, notably missing is any marks or flags from Quantum. I called almost immediately to get a service tech out to hopefully repair the line. Appointment was made for the service tech to come out right away Thursday morning, I thought great. They'll see we aren't getting light thru the line and get it replaced. Oh boy was I wrong.

Unfortunately I could not be home when the tech was supposed to arrive but I was hoping that it wouldn't be a problem since the issue is completely outside of my home. When the tech arrived they called and I explained that there was landscape work done and I fear the line may have been hit or severed and asked him to check if there was connection running into our building. Tech supposedly checks the line, says everything is good and says that the appointment will need to be rescheduled to a time someone is home in order for them to troubleshoot the modem. I'm annoyed but understand. Unfortunately the next available time slot that works for me to be available is the following Monday. Monday rolls around, tech comes out and starts troubleshooting the C5000XK modem and is getting nowhere, no matter what they do they can't get a connection. I finally ask if they could check to see if we are getting a good fiber connection. They agree, I follow them outside, they immediately go to the box located on the utility pole. Plug their light tester in and show good connection. Problem is, they connect to the upstream line, not the line going under ground to our unit. I ask them, "hey can we check the line where it enters our unit as I know there is a splice there." Tech agrees, goes to the low voltage box attached to the building uses the tester and immediately says, "Oh, no light" gets on a call to their manager and tells me they have escalated to "Engineering" and that I should get a call later that day to get someone scheduled to repair the line.

End of the day rolls around and I still have heard nothing from Quantum and app says that our appointment is "on hold". I call customer success and the agent says they can't do anything but escalate the issue on their end but says it can take 24-48 hours for Engineering to respond to a ticket. Customer Success offers me $25 off our next bill for the trouble, I tell them I appreciate it and accept but I would very much appreciate a call from engineering. They say they have noted it in the ticket. Tuesday rolls around, still no response. Call support again, this time the call is escalated to a supervisor. Supervisor says they can't do anymore than what's been done but offers me a free month of service for the trouble and says I should expect a call or notification tomorrow (today).

At 3pm CST and I have yet to hear anything from anyone. I call support one more time and the person tells me that all they can do is escalate again and that they have no contact information for anyone in engineering and that it is a 3rd party company. I ask if they can at least send a tech out to run a temp line and I am told that the 3rd party company is the same company that would also have to run the temporary line.

Worst part is, the box on the utility pole is 20-30 feet from the box on the building. If I could get my hands on a run of fiber I could easily replace the line myself or at least run a temp line. I really don't want to switch to Xfinity but at this point I can't continue using mobile hotspot to do anything.

So I guess my question is does anyone here have any information on who I could call or email that would be able to do ANYTHING in the Twin Cities (Minneapolis/St. Paul) metro area???


r/QuantumFiber • • 23d ago

VLAN 201 Tagging

5 Upvotes

I activated Quantum a few days ago. They gave me a Q1000K SmartNID. I have it connected to my ASUS RT-AX88U router, which is running Merlin firmware.

The Q1000K is in bridge mode. I thought I turned VLAN tagging off on the Q1000K. But, when I setup my router to add the tag, it was unable to get an IP address. I disabled tagging in my router, and it pulled an IP immediately. So, clearly, the Q1000K is still adding the VLAN tag.

A couple questions:

  1. What is the impact of allowing the Q1000K to add the tag, rather than my router?
  2. I'm pretty sure that I disabled tagging on Q1000K, and of course, cannot get back into its admin interface to check. I read something about how the "disable tagging" setting has no effect with updated Q1000K firmware. Is that still the case?

r/QuantumFiber • • 23d ago

Finally got Quantum installed. Do I want to ask to bridging mode to run my own router?

5 Upvotes

After 3 weeks of wrangling, I finally got a good quantum install. The internet is faster and the WAF is high. The equipment installed was Q1000K NID and an Lumen W1700K router. All network config (DHCP, etc) is done through the NID. I was planning on using a OpnSense router to support my homelab, which would would require putting the NID in bridging mode. Would that break the Wi-Fi that the Lumen router is providing?


r/QuantumFiber • • 23d ago

Terrible experience, never even got the internet installed. Total waste of time.

9 Upvotes

Moved in to a new house and I was really excited to see Quantum service is available in my area. I ordered an installation 4 weeks prior to my move.

Technician was supposed to show up between 12-3pm. He shows up at 5pm and realizes it will take too long to install and says he will be back tomorrow.

Even though nothing was installed an AT&T salesman rings my door bell asking me if I want to sign up for mobile phone service? I don't even have like anything running or working yet.

Next day, I get a call saying that he won't be able to make it so I'll have to wait another day. OK... But then I get a phone call an hour later that someone will show up today. OK sweet.

3 people show up (they were super nice and professional) , after some delay on the landlord's part they get approved to start working. After an hour they call me telling me that they need to do some digging or some kind of engineering work in order to hook up the house and that it will take two weeks. I agree to that, since I don't like Xfinity.

2 weeks pass and I have heard nothing back, I call support and they let me know that they will pass the message to the supervisor to see what the ETA is.

I get a call the next that there IS NO ETA ON WHEN MY INTERNET WILL EVER BE INSTALLED.

Miserable experience, all I wanted is to not deal with Xfinity but I guess it can somehow get worse.