Currently on 7.1.1.30. Had to do a factory reset after it was updated to get the modem to work properly. So far the only problem I have is 2.4G SSID would randomly disappear, but not 5G SSID. All my devices that is connected on the 2.4G would go off...
I'm also interested in trying the beta firmware .27 for the CGNM-3552. I am aware of the maximum upload speed of 20Mbps and I don't think it will affect me since I'm on Rogers 100u plan with 10Mbps upload. Who would I have to message to get this firm...