Thanks for your help. I'll give it a go!

The device we have is this one - https://www.amazon.co.uk/gp/product/B07ZWBBPQN/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1

Apologies - unable to fill in some of the above data - not available but probably not relevant. I need to extend church network to adjoining hall to provide WiFi in hall. BT modem provides WiFi in...