That's what my 4900 (through a DishPro adapter) says. But I only have 3 satellites, while the OP has 4. I don't think you can plug 4 sats into a SW64, can you? It has 6 inputs, but each pair carries the opposite polarization from a single LNB, which would be 3 sats max.If you do get it to pass switch test it should see the switch as a SW64.
Ah yes. I forgot about cascading switches like that. So, if a legacy 4-sat system is a legal and supported configuration, then why does the check switch fail when connected to a 1000.2 + wing dish?SW64 output 2, 3 and 4 can be connected to an SW21 for the fourth sat.