I have noticed on a CCR 1036-12G-4s that when I try to update to the newest ROS my fans stop working. I revert to 6.29.1 and fans resume. Is this a known problem or is anyone else experiencing this?

Fans of my CCR1036-12G-4S are spinning at 6.30.2 if it is necessary.
Perhaps temperature is too low? I´m currently connected to the CCR and is on auto/main
Temp is at 40C and CPU at 54C.
Sometimes both are at 0RPM, sometimes only the second one is at about 3800RPM, sometimes both are beteween 3700 and 4200 RPM.

No. Temperature is not the problem. I watch the temperature rise to 99C and the router reboots from overheating. I revert to old ROS and hardware resumes like normal or the fans engage at 50-55C.

Did you also upgrade the Firmware? I´m on 3.27

yes...

Mhmmm, strange. As I don´t have this issue, it seems not be a general problem and I would suggest to contact the support with an autosupout.rif attached.

Alright then. I will do this next.

So am i