Server Pauses Occasionally When Answering Connections

i, The website is www.scriblink.com. Most of the time it runs very smoothly, but occasionally the server will pause and not answer the connection. My existing coder describes it like this: A running server waits for a connection, create a thread on each and suddenly falsfl to sleep for sometime and wake up to continue to server. I need to hire a coder to figure out why the server "falls asleep" Anyone bidding on the project will also have the help from my primary coder who is very familiar with the site's code.