Is this with a WiFi connection ? If so, for a test, does a computer / device hardwired directly to the router / gateway device with an ethernet cable have the same problem ?
With this test, we are trying to isolate this from being either a WiFi-only problem or a problem with the general connection to the Comcast system which would of course affect both. It's a good first step of troubleshooting before we proceed any further.
Ok. Start with the modem's signal stats. Perhaps they already are, or they are close to being out of spec and intermittently they go completely of spec. Try getting them here http://192.168.100.1 or here http://10.0.0.1
Please post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.
What is the exact make and model number of the modem ?
Is this a WiFi connection ?
Well the stats were all good at that snapshot in time. Are there any RF signal error / event log entries being shown ? If so, please post them as well.
O/k we've seen many posts here recently indicating that they have now blocked the end user from accessing the error logs in the Comcast supplied gateway devices. A BIG mistake in my opinion......
Perhaps there is noise ingress into the line(s) somewhere.
There are other signal stat figures that can't be read by the modem. They are the "Upstream Rx Power" (Upstream Receive Power Level), the "Upstream SNR Ch." (Upstream Signal To Noise Ratio), and the "Upstream ICFR" (In Channel Frequency Response). These are as equally important in diagnosing connectivity issues as are the modem's stats.
I'm going to escalate your issue to the Comcast corporate employees that are available to these boards. They will be able to poll the CMTS to see whether or not everything is in the green zone, see your node / cable plant and modem health, and also see a history plot for the modem. You should get a reply here in your topic. Good luck !
My pleasure !
Hi Nateq. Apologies you are experiencing issues with your service. I can totally understand how frustrating it can be to have your services not remain as stable as you expect. We going to work diligently to identify a solution to your service issues. So that I can assist with further troubleshooting your internet connectivity issues, please send me a private message and include your full name and service address so I can access your account.
To send me a private, message click my name (ComcastJoeTru) to view my profile. Then click "Send a message" and private message me.