I posted several times above: This problem persists only on CRS317 running RouterOS (any version). If you don’t want port flapping at all, use SwOS 2.7 or 2.10 (don’t even try 2.8, 2.9). We have many 317 in different configurations with heavy traffic, hundreds of vlans, many of them connected with ...

Does this mean that Mikrotik knowingly continues to sell a faulty product? According to the findings within this thread and the information I received from our distributor: Yes. So almost one year after, we're at the same place.... We've bought high-end devices from Mikrotik, hoping for full 10G su...

do not use DAC.

this issue also happens with mikrotik SFP+ and fibers

Mikrotik, this issue has almost 6 months !!

It seems that Mikrotik acknowledges the problem, my reseller confirmed this point, you should be able to prioritize this issue as it affects core features : we're unable to deliver 10G connectivity !!

Sometimes on CCRs ports go totally down, disabling and enabling them solves the problem.

In production context ?

exact same issue here, same symptoms, same workaround (force 1G link), it would be great if Mikrotik took this issue seriously...