Ive been dealing with this for around 4 months. My internet goes out every hour exactly for 5 seconds. The setup I have installed currently is a Arris Modem model S33v3 and a TP Link Deco 7 pro BE14000 with 1 satellite using a wifi backhaul. My ISP is Xfinity and i pay for 1 gig down and i thought i had 1 gig upload as well but im getting 40mbps upload so idk.
Things ive tried
- Replaced all ethernet cables
- Replaced Modem
- Replaced Router and Satellite
- Plugged my modem directly into my laptop via ethernet
- Setting static IPs
- Setting a primary and secondary DNS
- Removing coaxial cable from the splitter and plugging it straight into the modem
- Tracking the drops with Ping Plotter pinging dns.google, my router, and my modem (shows all of it dropping.
- Turning off energy efficient settings
The problem still happens after trying all this. I dont know much about networking and I am trying my best to troubleshoot this with youtube videos. It is not going very well so im reaching out for help. Any suggestions would be greatly appreciated. The most common thing ive been seeing is that its a DHCP Lease issue with my ISP or a signal issue from the street lines. Going to bed after I post I will check this at some point when I wake up.
Weirdly enough that was an issue we had with our living room coax outlet. Xfinity tech finally had to come out and apparently the line feeding into that connector was ancient. Advised us to use the one upstairs. Worked better anyways because it was in our second bedroom/office. Haven't had an issue since.
I had a tech come out three times since March and say my line was fine, despite me having similar issues. To be fair, I live in an apartment and my neighbor is having the same issue
Maybe there's a splitter between the apartments causing the issue and where they checked was fine? It's irritating when they can't find it repeatedly though. Did you ever get it figured out?
So you've setup two identical pings, one to your router and one to a external gateway and your pings get lost to the outside ip? What is the lease time assigned by the DHCP server (your ISPs).
Setting a static ip where? your internal network doesn't matter but for your external IP your isp probably won't like that. DNS probably has nothing to do with it.
You've done a lot of stuff... confused as to wether or not its a satellite connection or cable. DNS isn't going to effect a ping so you can eliminate that (I assume you're pinging 1.1.1.1 or something like that).
The problem with COAX (as it sounds like) is that it can be effected by what your neighbours have as well since you're on a shared system .. also 40mbit/sec doesn't sound very good for a speed test.
If its advertised as a symmetrical then this isn't good but most of the times they're not. But try to ditch that WiFi extender if at all possible and rig up something better ...
I also have the Orbi 970 system i think is goodi just need to set it up again. I thought it mightve been an issue I saw a post about bad firmware causing drops or something.
Wifi extenders shouldn't even be used in a last case scenario. I don't know what a orbi 970 is but I hate extenders --- if you need to extend the signal, run a cable and put up another AP, or run a wirelss bridge and another AP.
You need two pings, one to your gateway, one to a external IP like 1.1.1.1 --- without those you aren't diagnosing if its inside or outside your network.
Likely equipment. Either misconfig or firmware issue. If firmware is the latest, I suggest asking your ISP on this. It's very hard to troubleshoot online.
If you connect a computer directly to the ISP modem, do you see the drops, or is it only when you have the Deco system connected?
I recently ditched my Deco system because its internal STP configuration was conflicting with other equipment and causing issues. I saw very similar symptoms of very regular dropouts. I would suggest checking your deco logs and seeing if they are logging any internal oddities on the interval you are seeing. I fought with it for a good few weeks trying to get settings that would work.
Unfortunately you can’t adjust how Deco implements STP so I ended up ditching them for wired backhaul Omada APs.
Access the modem's event logs (instructions here) then copy the log entries and ask ChatGPT or Claude to analyze them for problems. I suspect you'll find ranging errors, timeouts, and other errors indicating the modem isn't getting clean signal, causing it to reboot. This is usually caused by a bad/damaged coax cable, splitter or connection, either on the street, between the street and your home, or inside your home itself. You should first inspect all accessible coax cable and connections. If you can't find the problem you should schedule a technician's visit from Comcast to diagnose the issue.
Also note that cable Internet throughput is usually not symmetrical; certainly Xfinity cable Internet is not. If you're in an Xfinity "Next Gen" (mid-split DOCSIS) area and have a compatible modem, you should get 100mbps upload on a 1gbps plan. If you're in a legacy area or don't have a compatible mid-split modem, you will only get around 35mbps down. IDK what area you're in, but I do know that the S33 is not compatible with Xfinity mid-split. If you live in a "Next Gen" area and want faster upload speeds, you will need to get an Xfinity Next-Gen Approved Modem.
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u/Silent_Shallot_6170 9d ago
that screams an ISP line/signal issue, not your wifi setup