The LGSL support forum was getting a bit overun due to me having a lack of time to deal with problems and feed requests.
So I am pleased to say that I have created a new page where you can test your IP:PORT to see if its an LGSL or hosting problem. At the same time, an option is available to add the server to my feed, so you dont have to wait for my approval !
More details and a link to the page can be found in the LGSL stickied threads.
As a seperate note, if you are experiencing the problem of players not showing for Half-Life and Half-Life 2 based servers, please re-download LGSL and update your lgsl_protocol.php. Note although the code has changed, the version number has not.