My internet intermittently drops - sometimes for up to a few hours. I purchased my current router/modem about 6 months ago after my old one got fried after a lightning strike. Tried troubleshooting last time it happened, but didn't really get anywhere with Comcast, other than to schedule a tech to come - which if it's due to my router, I'd have to pay for. I don't really want to take that gamble, although I don't think it's my router. I'm wondering if maybe the cable was damaged by the lightning strike as well? Any other ideas? I work from home and really need to have reliable internet.
Are you connecting via Wifi or Ethernet? If Wifi, it's best to switch to an Ethernet cable connection if possible for testing. That would allow you to determine whether the problem is the Wifi signal or the link between your equipment and Comcast's network. Network connection problems that affect both Ethernet and Wifi devices are often due to poor coax connections, usually in or near your home.
If you want to troubleshoot this yourself, please see Connection Troubleshooting Tips. If you still need help, please provide Information Requested for Connection-Related Posts, especially downstream power levels and SNR, upstream power levels, and error log.