I am using a TP-Link TL-WA1201 (Hardware Version 3.0) as an access point connected via Ethernet to my router. I also have a TP-Link extender connected wirelessly to the access point.

Every ~1 hour, devices connected directly to the access point get disconnected and are unable to reconnect for a few minutes. During this time:

• The Wi-Fi network (SSID) is still visible
• Devices fail to connect (authentication/connection fails)
• After a few minutes, connection works again automatically

Meanwhile, devices connected to the extender remain stable and are not affected.

Additional details:

• Only 3–4 devices connected to the AP
• DHCP is handled by the router only
• Different SSIDs are used for router, AP, and extender
• Latest firmware installed: 1.15.0 Build 250815 Rel.65233n(4555)
• Issue occurs consistently and periodically

This suggests a possible firmware or wireless stability issue on the access point.

Additional Information:

The device has been stable since 2023. This issue started approximately 2 weeks ago without any changes to my setup, which suggests a recent firmware-related problem.

I attempted to downgrade the firmware to an older version, but the device does not allow it and returns the error:

[upgrade] main version 0x10a00 is smaller than 0x10f00