Similar problem here in Richmond POI. Just got stable for a week and now been having problems with Tx level starting this afternoon..
Not sure what happened, the TX level on my modem is once again at 55.2dbm. What is strange is that I was disconnecting every couple of minutes and all of a sudden stay connected even though my Tx level is still at 55.2dbm. It is as though someone override a reconnect threshold.
DHCP lease is still 7 days and not the 1 hour thing that they do when they do maintenance.