Dear Mikrotik, ...

It seems to me that the S+85DLC03D SFP module can not build up a link while plugged into a CRS326-24G-2S+

- The CRS326-24G-2S+ detects the SFP module.
- Replacing the SFP module to a Digitus SFP module can build up a link just fine.
- Tried with CRS326-24G-2S+ SwOS 1.7 and upgraded to 1.9.
- Neither 1Gbps, nor 10Gps, - it seems that the incoming connection is not detected.

On the other end of the line, we use the same type, S+85DLC03D with RB260GSP or a CRS112-8P-4S-IN.
Tried with 3 different CRS326-24G-2S+'s, and a couple of S+85DLC03D's.

Please advise on the issue. Thank you.

RB260GSP and CRS112-8P-4S-IN have sfp ports, but S+85DLC03D is sfp+ module. Incompatibility seems to be at other end of the link.

Using modules like S-85DLC05D at both ends would solve the problem.