Please can someone help?

I've followed the applicable setup instructions.

All lights on the router are what they supposed to be.

I connected my laptop for setup via the LAN cable...

Once setup, I'm able connect to the Internet when connected via the LAN cable and I can connect wirelessly from another desktop PC

My problem is:-

I cannot connect from the said same laptop wirelessly (comes up saying "connection is limited" and also when I try to connect via my cellphone (tried 2 other cellphones as well) to the router, it says "Failed to obtain IP Address"

Any ideas why or what I'm missing?

TIA

Heinz