@WMConey Have you tried restarting the router?

@127.0.0.2 I don't think you can use CLI when the switch is connected to a controller, CLI has limited capabilities then. Reset switch to factory default and readopt is probably the only option.

@Czega I created over 1000 VLAN. so you have to use switch only :-)

@Czega If you use switch only, you can create multiple VLANs. I created 512 VLAN

@Czega I tried this, I created an empty site without any switches and I was only allowed to create 256 vlans, I have a windows software controller. I couldn't create vlan 257 so I don't know where...

@Czega It is very poorly documented how many VLAN switches support, but I believe it is around 256 on the SG2xxxx switches. So you have probably hit a limit. There was something about this on the...