3 Messages

Sat, May 7, 2022 4:23 PM

MB7220 with 600mbps plan causing latency spikes?

I was talking with an agent about my latency spikes and told her I have a modem rated for 200 Mbps (MB7220). I already knew I would not get more than 200 Mbps but she said I was getting latency spikes and having to reset the modem frequently because my modem is "not compatible" with my plan. Just wanted someone to confirm this

Accepted Solution


Gold Problem Solver


23.7K Messages

Hace 19 d

... (MB7220) ... latency spikes and having to reset the modem frequently ...

The MB7220 is no longer approved for any plan speed and should be replaced. See https://www.xfinity.com/support/devices.

Latency and frequent resets can be an indication of poor signal quality, often due to poor coax connections or damaged coax cable, usually in or near your home. If you want to troubleshoot this yourself, please see Internet Troubleshooting Tips. If you still need help, please post the following information from your modem or gateway at

  • downstream power levels, SNR, and error counts
  • upstream power levels
  • event log, if available (Be sure to remove or blot out any MAC addresses. Forum security processing considers them "personal information" and may prevent the event log from posting if these are present.)
Please be aware that there are 2 kinds of responses in this Forum: Replies and Comments. When you Comment on a post by scrolling down to "Comment on this post here...", I am notified of your response. But if you select Reply, I am NOT notified and may not be aware of your response.



3 Messages

@BruceW​ bought the MB8600 and no issues after a week so far

forum icon

New to the Community?

Start Here