I called cust serv to inquire about installation of a 322. I told the csr that I had a dishtwin LNB with two receivers(3900 & 301). I stated to csr that I was going to swap out one of the receivers. Then I asked what additional equipment would I need to install the 322. The csr told me that I would only need a seperator. Based on this information I went out and purchased a 322. I activated and installed the receiver and I wasn't able to get the proper signal on input 2. I reversed input 1 and input 2 just to make sure the cabling or port on seperator wasn't bad. Same result. I removed the seperator and didn't receive the error. After I got the receiver to work(half-way), I researched the forums and found out that the dishpro twin lnb has to have two individual feeds to the 322 or a dpp-44 has to be utilized. I'm really upset now. I bought a 322 based on misinformation from the csr. I have 3 options two which aren't feasible. Installation of a dpp lnb or running another feed aren't feasible for me. The only option is to go out and purchase the switch. I've learned the hard way, always second guess what the csr tells you. It may be the wrong info.