I've tried replacing the coax cable + ethernet cables for the modem and router. Comcast came out and upgraded the wiring connected to my house. Still happening. (For the record, I'm using a ARRIS Surfboard S34 DOCSIS 3.1 and Deco BE63 mesh network.)
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1. Open Command Prompt:
Click the Windows Start button.
Type "cmd" in the search bar and press Enter.
Alternatively, you can press the Windows key + R, type "cmd", and press Enter.
One time my dumbass had an Ethernet cord with both ends plugged into the same router and that caused some crazy intermittent packet loss that seemed like Internet outage
Ugh that's a rough one. I can think of some ways to troubleshoot it but all are rather technical, and would require direct access that I don't, and shouldn't have. I'm not a networking pro, but I'd look into doing some ping tests from your PC to a DNS server then after you see it fail, to a local PC
the second one is the real test. If it doesn't fail when the network goes down, it's more likely to be on your ISPs end. Or at least tells you that your router is working for internal network traffic, and is having issues somewhere on the path to the internet
Have you tried an Ethernet to usb-c adapter to see if it’s the port. The WiFi makes me think that doesn’t matter tho. Ps. This is what Isaiah told me to type. I know noting.
I'm not 100% sure what they replaced, other than the Comcast engineer saying the wiring outside was ancient and could be causing issues. What do you mean by signal test to the modem? Treat me like a five-year-old lol
Modems have a built in status page, sometimes like 192.168.100.1, that you can go to on your local network. It will show you all the channels the modem is connected on and number of errors. It's often a diagnostic tool used by Comcast support
Pardon if this is too much but i do this troubleshooting for a living lol.
Isolate the issue: connect your PC hard wired to the modem and open Terminal and type: ping -t https://google.com | ForEach-Object { "$(Get-Date -Format 'HH:mm:ss') $_" }
When the issue happens, you should see time outs and you can call comcast and tell them you isolated the issue and they need to fix their shit. If the issue never happens in that scenario, then its your local home network and more troubleshooting can be done on that side. Don't mind assisting.
Is the issue with wired devices or with phones etc? I had a similar issue when I set my downstairs AP to be 192.168.0.X and my upstairs AP to be 192.168.50.X - my phone would lose internet as it got a new IP address whenever I changed floors.
Failing modem or router? Or even a power supply to them? Possible damage from wind or storms knocking around outdoor powerlines? I push my home network hard working from home for the past 5 years. I've had to replace my modem and router each twice due to them just getting weird.
Given all the power problems you’ve talked about, I would probably look at power first if it’s affecting wired connections. Also, a better understanding of the exact failure mode is helpful. Do you see the modem or router rebooting (blinken light patterns)? Do you have any log access on your router?
Be aware that power supplies often cut *over* to backup power and will pass through the mains power. ATX power supplies have a rated switching time that they are compatible with, but home networking equipment may not be as tolerant.
Does the flapping happen regardless of what network device you've connected to? If you're connected directly to that Surfboard modem, do you still experience the disconnects?
yeah seeing if it happens connected directly to the modem is a good start. If not, there's a good chance some device on the network is misbehaving (eg https://en.m.wikipedia.org/wiki/Broadcast_storm), so you may need to try gradually turning everything off til it stops happening to figure out which device it is
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Disconnect everything, then check out network activity, in case you have a network leecher
1. Open Command Prompt:
Click the Windows Start button.
Type "cmd" in the search bar and press Enter.
Alternatively, you can press the Windows key + R, type "cmd", and press Enter.
In the Command Prompt window, type either ipconfig or ipconfig /all and press Enter.
3. Locate Your IP Address:
If you used ipconfig, the IPv4 address will be listed in a section labeled "IPv4 Address".
Ping /t 9.9.9.9
and then:
Ping /t "a local IP Address that isn't the PC you are on or your router or modem"
Isolate the issue: connect your PC hard wired to the modem and open Terminal and type: ping -t https://google.com | ForEach-Object { "$(Get-Date -Format 'HH:mm:ss') $_" }
Press enter and wait for the issue to happen.