Hiya, we've been having the same issues on our CCR2004-16G-2S+ with both active and passive cooling, I initially made a post here: https://forum.mikrotik.com/viewtopic.php?t=212609 about what could've been causing our ports to flap, reboots are a temporary solution, but it always comes back eventual...

As of this morning, two of our CCR2004-16G-2S+ actively cooled routers have essentially locked up, leaving large swaths of customers without internet. This appears to coincide with our temperatures reaching extremes of -20°F (-6.6°C) and below. According to technical specifications, these routers ha...

Do the log files show anything useful when it happens ? Mac conflict somewhere? I'm not sure, our logs are only in volatile memory, and the only way to remedy the problem was to physically disconnect it from power and reboot it that way. The only time I was able to see logs before it became impossi...

Howdy all, Recently one of our routers that we have deployed about 6 months ago to one of our towers began exhibiting some very weird behavior, all of the ports on it would start disconnecting and reconnecting to downstream hardware in a repeating pattern. They would start connected for about 10 sec...