Hi Mark,
Which patch are you using atm? What does it say at the top of your WinMX in the update bar?
It could be that your finding fakes if your not using the latest WinMX Group patch from here:
https://www.winmxgroup.com/If you do have this installed then it maybe a port issue.
Do you get a full channel list when on primary for Chat? Or do you get search results?
Do your uploads also time out?
Do all downloads turn red?
If you have the latest patch already installed your WinMX update bar should say Patch Operational.
If it does say that then can you give the information asked for here please and we'll try to see whats going on.