First, how do I test if a socks proxy is working?

Secondly, the port of the proxy, in the settings, is this different to the listen port and the manual port forward number

At the minute the listen on port is 23720 and the manual port forward is 6346

The port for the proxy is different to both. Should this be the case?

I have tried everything and sill cant connect using a proxy
I'm with talk talk whio say they dynamically shape, but no matter what time I can't connect