NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
markweiz
Apr 12, 2021Star
CM1200 Dropping connection intermittently - SYNC Timing Synchronization failure
Bought the CM1200 about a month ago and since it was setup by RCN(isp) I have had it seemingly randomly dropping internet connection. When it drops connection the downstream light will be blinking an...
markweiz
Apr 13, 2021Star
I have attached screenshots(can only attach one per post it appears will attach the second screenshot in the following message) of the connection page when the internet was disconnected. The technician that came out tested the signal and line up to the modem and determined it was fine. The ISP has reprovisioned the modem twice with no issues either time. There are no splitters in use and I have tried multiple coax cables to no avail. Ethernet port aggregation is disabled. I did try enabling Enable Extended Upstream Transmit Power to fix the issue, but that did not work.
markweiz
Apr 13, 2021Star
Second screenshot