Hello, I have the problem.

Till yesterday I had my TUYA relay switchboard connected to the tp-link omada eap225 without Deco. Yesterday I changed the EAP225 and installed deco BE22 three devices with fw 1.1.0 Build 20250718 Rel 54178. From yestarday my tuyas do not work. I have tried with 2,4GHz only with 2,4GHz and 5 GHz nothing.
I have tried with disable "Mesh Technology", then disable "Fast Roaming" and "Beamforming" and not it helped with the current issue.
I have tried WPA/WPA2 security, nope.  
After I create Iot SSID with open security without password, Tuya connected immediately.

I tried reconfigure client in app after connect to unsecured site, to use only 2,4 and no mesh and prefer closest AP. And try new connect to secured SSID and I have not success.
Tuya has CB3S chip and original firmware, version v102 and Main module v1.3.10

Thanks Kamil