Thanks for your reply. However, I had already rebooted my obihai 200 at least 5 times since this happened and my router 5-10 times, even a hard reset, none of this has fixed the issue.
Comcast did change my signal strength from 53 to 43 as they said for internet only service 43 is the correct number. I'm thinking that this may have caused this problem? They are coming today to diagnose this.
Also, starting yesterday about 60-65% of my calls, the person on the other end said I kept cutting out, on the balance of calls all was OK. Previously every call my voice cut out for the other person, so not sure why the change.
Anyone here have any ideas what to troubleshoot or have the Comcast tech check today? I did run one of the VOIP tests posted in this forum and every test was green.