Ports Are Not Working

I have a switch containing 48 connections. I have a patch panel that links to lots of access points in my building. One access point was not connected but needed to be but I didn't have any spare switch ports. I therefore reconnected switch 23 from one position (and thus one access point) to another position on the patch panel. Everything worked fine and this new location had network and internet access. Then however a few weeks later I had to change it back so i changed the connection of port 23 to the old position on the patch panel. When i did so port 23 showed a red light and then no light. Later I had to change it back to the other location but when i did so port 23 now shows no light whatsoever. It's as if the connection port just stopped working. Now both the old and new access point locations have no connection and I can't understand why.I tried rebooting the server but no luck. I tried connecting that access point through the patch panel to a different connection port but still no luck.