@wkas and update the router to the latest version, the version you are using is outdated and full of bugs. You can find the latest version here...

@wkas if it doesn't work, you have something between the router and the switch that destroys the vlan. be sure that the switch is connected directly to the router and to a port that has vlan200...

@wkas to set a vlan on a switch you have to select port not config

@warllo I think there is a difference between the SFP + DAC cables, some only support 10GB others have 1GB and 10GB, I use a unifi SFP+ DAC it supports both, I use it between an ER8411 10GB interface...

@MonsterVic go for the ER706W, it has better WiFi and range than the EAP65x I have both and when I compare the ER706W is much better than the EAP653. you also get a better router than ER605.

@Inforbits ok everyone, I've tested a bit more with NAT loopback, I don't have an ER605 but I tested on an ER706W, It looks like the ER706W does not work the same way as the ER8411. Test on ER706W...