@KajtekKajtek Thanks for your post, what that error code means is that there is a configuration on your switch that isn't supported; I do see that that specific model should support 802.1p, so it...

@MR.S @anon_uk With regards to hardware version, I'll check up the chain to see if this can be clarified by distributors, but that may take some time to see results. I understand how frustrating this...

@anon_uk V1.6 is the same version as V1.0 in terms of features, so your ER7412-M2s should be fine. You can find more details about hardware versioning in our KB here. How to tell TP-Link Device...

@JanGold Beta firmware does not automatically send the info; it is collected and stored into config files, but the devices do not automatically send the info to TP-Link. It still needs to be manually...

@ArthurSantee In Controller V6, the setting has been moved to the Gateway Config > Advanced > DNS. Does it show up for you there?

@J_D_42 Regarding 1, yes, that appears to be correct. Good luck with your network!