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Forum Discussion
CM1100 problems with Xfinity
Hello all, Recently purchased two CM1100 modems from costco to ultilize gigspeed at both of my addresses. Long story short, it has been a very frustrating two weeks. I have only been able to get...
1. yes, line amplifiers can cause issues. So can splitters and attenuators. Your best bet is to remove all of them, directly connect to the coax where it enters the home. This prevents wiring within the home from being the issue. Once that's done, take a screen snip of the cable connection page and post it back here with your logs. We can take a look at them for you.
2. Are you using link aggregation? its been known to be problematic with comcast on more than just netgear devices. If you're using that, disable it.
3. What speeds are you paying for?
4. How are you testing the speeds? I'd recommend speedtest.xfinity.com or dslreports.com
5. what router are you running through? For setting up/testing speeds, I'd directly connect to the cm1100 to ensure it isn't router issues causing the problem.