Bridging Ethernet and Wireless

I have three computers on a home network. Computer A connects to Computer B
via ethernet and this works. Computer A also connects to Compute C via a
wireless peer-to-peer connection and that also works. When I build a bridge
on Computer A of the ethernet adapter to Computer B and the wireless adapter
to Computer C, neither of the other two computers can see Computer C.

The status on all of the involved adapters on all of the computers says
connected, good signal strength, etc.

Can anyone help me?

Jim Thompson