@Vincent-TP, on the 615, eth1 has a dummy/unused VLAN and no VLANs on eth2 or eth3 ports (disabled). I have multiple SSID mapped to VLANs and all of these are tagged members on the switch port...

@CarloPH, seems the issue is isolated to the SG2005P-PD. Not sure there's much else to do other then try a replacement.

@arife35, in the controller, once you select the site, look in Settings->LAN. If this is all new, you should only see one interface. Click the edit icon to see the config.

Hi @mwfis, I've noticed that you can assign mutiple untagged vlans on ports, but it seems like this is the norm. The controller lets you do it, last time I used the TP-Link web UI I could do it and...

@tessierp, TL-SG2210MP V3

@tessierp, my original failed fan was a Runda RS4020b12d-RA and the Noctua NF-A4x20 FLX plugged in without any mods. My switch was a different model, but this is what worked for me.