Error Code 22

I just had an HR24-500 shipped to me about a week ago and had to install it myself. Everything works perfectly except for the internet connection.  I have a direct ethernet connection to my Linksys wrt54g wireless router.  I keep getting the error code 22 when attempting to connect to the internet.  The cables are all good and all my computers can connect using this cable as well as wirelessly. Again the network test states that the receiver has connected to the network but not to the internet. Is there any solution to this or am I wasting my time?