@paderijk Hi there, how about upgrade the firmware version of all your EAP225 to the latest one. The controller version for the Controller is 4.3.5, maybe you can try to upgrade all EAP to the latest...

@RubenW Hi there, not pretty sure about the reason but since the status changes back to normal, congratulations after the firmware upgrade. By the way, since you have upgraded one of the EAP, please...

@WidebandRuler Hi there, it seems that you are using the Controller Software to manage one router and achieve the multi-subnet for the network. Cause there has no option to add PVID into the route's...

@Netbug Hi there, the official website has a related instruction if cannot open the Software. https://www.tp-link.com/en/support/faq/2998/ If still cannot work it is advised to email the support team...

@shberge Hi there, the second port on the EAP245 can only work as a normal Ethernet port, cannot set up VLAN on that port, after the firmware upgrade, the new firmware has changed this bug and also...

@akikoy Hi there, I see there has an FAQ for the slow speed issue of AP+Client, wish it can help you: https://www.tp-link.com/us/support/faq/2576/