Hi all, first post here and hoping I am posting in the right forum. I have done a couple of searches and have been unable to find the answer I am looking for so ,here goes. I purchased, from Dishstore Online, a Dpsw34 switch and a dishpro adapter so that I could run a 522 + a 3900 0n a Dp500 dish. The 522 works fine, the 3900 works for a while and then I get a switchbox error message. If I switch the wires around and do a switch check it will work for another day or so. Where might my problem be? Any recommendations would be appreciated. Thanks and don't hate me if I posted in wrong forum.