@firefox111 I talk about how to do it under Omada controller in this post https://community.tp-link.com/en/business/forum/topic/634228?replyId=1269906 You should be able to figure out the standalone...

@sonaric Do the devices access the controller over the internet or via a VPN tunnel? Is it possible there was a DDNS or IP change related to the controller which hasn't propagated out to the remote...

@Siari1221 I think a factory reset introduces more chances for error. You'd be better off logging in and checking things like if the device recognizes the SFP, if the SFP shows link up or down etc.

@NetworkN00b If you can adopt it when the AP is connected directly to the OC200 and powered via a POE injector, then the switch config (VLAN) is the issue. By default the management VLAN is VLAN1 for...

@ceejaybassist I don't know if what's been said above is true in your case. Because you are in 'bridge mode' you most likely have a public IP assigned to the WAN i/f of the router. Because 10.0.0.1...

@inglewood What is the rest of the architecture? Is this the only TPlink device? Is it plugged onto a 3rd party router that also has its own wif? Also try with a ridiculously long password set.