Router: Archer AX6000 v1.0 (1.2.5 Build 20211208) / Location: Living Room

Extender: RE605X v1.0 (1.0.4 Build 20210507) / Location: Hallway

I am using OneMesh, RE605X says that the 2.4g and 5g network signals both are strong, now in my bedroom I have IPTV receiver works with 2.4g only, the problem is when the IPTV connects to the router instead of the extender (which is far), this happen very often and I have to disconnect/reconnect many times and even restart every device to get the IPTV connect to the extender instead to have it working without freezing and keeps loading.

I understood that OneMesh technology should tell the device to go with nearest WiFi station! Or does the device decide that? However I need to specify that somehow and keep the IPTV connected to the RE605X without switching to the AX6000??

If that matters my IPTV is Spider V50 and uses a USB WiFi adapter.