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Forum Discussion
CM1100 troubleshooting xfinity
We bought a CM1100 cable modem at Costco this weekend. We are going to replace the Comcast Xfinity modem/router with this modem and the Netgear RBK50/RBS50. Today I tried to replace the existing rent...
That is hard to say after the info you've provided.
Can you post a screen shot of your connection page? it should show the channels connect, snr, connection strength, etc.
How about your logs as well?
When you log into your comcast account, is it showing as your device?
What firmware does the device show?
Can you connect directly to the modem with a computer and get good signal/service? are you able to browse online at all with this setup?
The questions above are good for help us troubleshoot. Doesn't mean they'll fix the problem. I've ran into, more than once, a crappy comcast technician. I'd try contacting them via phone and seeing if they can reprovision the device. IF they can reprovision it and you still have horrible service then you can either return it and replace or go through netgear support. I've used the cm1000 and the cm1100 without great success on comcast.