@Gargy There was a very simple solution to my problem. I only had to change the settings on the switch by enable and allowing the guest network.

@David-TP Sorry, I forgot about the switch between the main X50-POE and the other two. There is a switch called (Ubiquiti-Unifi 16 PoE) witch power the other two X50-PoE with PoE. So they are not...

@David-TP Hi, thanks for a quick reply. No errors has been showned in app before or after update to the newest firmware. There is no switch between Deco X50-PoE and internet. One of the X50-PoE is...

Problem with connecting to Guest network. I got three X50-PoE in the house. I can't connect to the guest network unless I'm standing close to the "main" X50-PoE. Anyone know how to solve the problem?