Hi  @ZoloNN 

WLAN broadcast doesn't require the controller running all the time.

What do you mean the "whole WLAN is not available anymore"? Please give us more details.

1. Is the SSID showing on the wifi list?

2. All wireless clients can't see the SSID?

3. Do you configure portal authentication for the WLAN?

4. If use a scanner, can you scan the SSID?

5. Is the LED status normal?

Hi @Vincent-TP,

re 1: negative 

re 2: yes (connection lost on my Pixel 6a and Lenovo T14 Gen5)

re 3: no portal is configured/in use

re 4: scanner (WiFi Analyser Premium on Pixel 6a) shows no SSIDs - not even hidden/unidentified one

re 5: LED on EAP is white

  @ZoloNN 

I am still on Controller 5.13 and my EAP615-wall happily continues to work when my controller takes an unexpected nap...  As do the meshed EAP225-outdoors.

hi @d0ugmac1,

I'm quite new with Omada products, so I've started with 5.14 version of software controller.....

with the  5.14 version the issue occured and with 5.15 occurs too

  @ZoloNN 

Thank you so much for taking the time to post the issue on TP-Link community!
To better assist you, I've created a support ticket via your registered email address, and escalated it to our support engineer to look into the issue. The ticket ID is TKID241213965, please check your email box and ensure the support email is well received. Thanks!
Once the issue is addressed or resolved, welcome to update this topic thread with your solution to help others who may encounter the same issue as you did.
Many thanks for your great cooperation and patience!