Sorry for the lack of information. The script runs on a shared hosting account. I know they update things but don't necessarily know when. It doesn't occur every 30 minutes but when it does happen to occur, the 503 error usually goes away in about 30 minutes. The script is a ticketing/CRM system we use for our small business that was created a long time ago and has no support etc. Thanks for the tips so far. I'm going to read up on fastcgi and Mod_cgid. My understanding is a socket is just a connection from the server to something else. I know just enough to be dangerous :) I've used this script for years and have learned Perl to make changes over the years by reverse engineering the original code. It's work great for me thus far. It's just this error came out of left field. Not something that started occurring after I modified code. When this happens our business is dead in the water. But it only happens maybe 2 twice a week and just something I'm afraid is going to get worse or happen at the worst time.