I've got this same issue with two 7100s- one is MP10 and the other MP10a. Happens mostly with the MP10 (4.46) but not as much -knock on wood- with the MP10a.
4trm and uni have been swapped. my next option is the processor. What's this about the year changing when this happens? I've never noticed that.
and yes it takes a reboot - remotely or on site to get them back.
The MP10 is on ATT Uverse lines.... the MP10a is on Spectrum lines... I have many 7100s on Spectrum lines and this doesn't happen. Not many customer on Uverse lines though.
Last edited by CyberLaw; 11/05/20 06:08 PM.