Log codes and internet disconnections

[Soul22]

C7800 errors and disconnects
Log code says: critical 3 Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=44:a5:6e:b4:62:48;CMTS-MAC=00:a3:d1:5d:61:5b;CM-QOS=1.1;CM-VER=3.1;

What on earth does that mean? There’s a lot more but the majority are error code 3 is that a system issue or an ISP issue

[FURRYe38]

Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
Be sure there are no coax cable line splitters in the between the modem and ISP service box. 
Be sure your using good quality RG6 coax cable up to the modem. 
Be sure to power OFF the modem for 1 minute them back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Mod...

[Soul22]

All of that has been done. I’m trying to determine what the critical log code 3 means and can’t find the info anywhere.

[FURRYe38]

I believe @plemans may know this...

[plemans]

Take a screen snip of the full event logs as well as the cable connections page and post them back here. You'll have to do more than 1 post (use the "choose file" method or we can't see it for several days)

[Soul22]

Finally the ISP admitted they were having issues and there’s a known outage in my area. So it’s a a dead issue know. T3 and T4 connection issues

[plemans]

Thanks for updating us.