Wifi keeps dropping intermittently for the past two weeks

As a test, does a computer / device that is hardwired directly to the router / gateway device with an ethernet cable have the same problem ?

With this test, we are trying to isolate this down to 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 in troubleshooting before proceeding any further. 

@user_otpj4z 

What do the modem's signal status values look like ? Try getting them here; http://192.168.100.1 or here http://10.0.0.1 

Please copy all of the text in its entirety of the *Downstream Power Levels*, the *SNR's* (Signal to Noise Ratios), and the *Upstream Power Level* numbers and paste them into your next post.

What is the exact make and model number of the modem / gateway device ?

Hey @user_otpj4z, Thank you for visiting our official Xfinity Forums Community support page. We greatly appreciate you taking the time to share your experience regarding the Xfinity Internet connectivity issues. I would be more than happy to offer my assistance looking into this further for you.

Were you able to review the signal levels using the steps provided by @EG? Could you please post the signal levels of the modem as well as check and verify that all the coax connections are in good quality such as no hard bends, kinks, bite marks, or cuts? Sometimes people push the modem back against the wall which causes the cable to bend sharply which can cause communication issues. We hope to hear from you soon and see the signal level readings.

@user_otpj4z The upstream power is too high. And there is only one QAM channel locked in other than an OFDM channel whose power is way too high. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels. This is typically caused by an upstream / return path impairment somewhere in the line(s). Here are some things you can try;

In an effort to try to obtain better connectivity, check to see if there are any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1002 MHz, bi-directional, and no gold colored garbage from Home Depot, Target, Wal-Mart, etc. Splitters should be swapped with known to be good / new ones to test.

Also check the coax cable for any damage such as cuts, nicks, abrasions, kinks, sharp bends, etc.

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two-way splitter connected directly off of the drop from the street / pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.

Good luck with it !

Thank you for taking the time to reach out and message @user_otpj4z. Glad we were able to schedule a technician to review everything and that the services are now working well. If you need anything more, please make a new post. Thank you for choosing Xfinity and we hope you have a great rest of your week. 

@user_otpj4z @XfinityDemitrius 

If known. Would you please share with the community what the exact solution for this issue was so that all readers here may benefit from it ? Thank you. Ex. Was the cable drop from the pole replaced / outdoor cabling ? Fittings replaced ? Indoor cabling ?

@bowerpower 

Are you the original poster @user_otpj4z ?