@robinprice well.. what mtu did you choose in the er7206 ? it defaults to 1492.. try 1480 and report result. if still not working report exactly what device is plugged to the SFP port or what...

@robinprice I have this same device.. and 1 fiber SFP module connected to 900/600 service, plus a cable modem connected using Ethernet at 600/10,, I get full speed on either of them..so you must have...

@Roboito are the wans going down? is application optmized routing enabled ?

@9f8301e1de71f0 I hav the er7206.. it uses unbound for dns.. it would be just a matter of adding the relevat configuration optons and updating the software .. however new featires on already released...

looking around the available source code looks like the sfp is controlled using a third party non standard driver.. I guess that means Im on my own.

correct patch is linux kernel commit 26c6cbc409