I see you are getting a lot of help. I always keep one of my tube monitors as a standby, using one now.
I have 2 PCs and soon to have 3 monitors ( up from 2) The PCs can be networked, but I intentionally need switch feeds to do this. I dont run 2 servers because the one I have in BA is very good (2.5meg) and any backup could be unpredictable. Throw in 2 brokers ( different DOMs) Voip, landline and cellphone and the only thing left is to have a non US broker I guess. However since I trade CME the wisdom of this move eludes me. But if the dollar slides into critical territory because of domestic issues and if the Fed dusts off plan B which splits the greenback into domestic and foreign currencies then all bets are off and it is back to the drawing board.