What you should do is direct connect to modem with 1 PC and then run speedtest. net. Ping a local and then a server in the area you trade in Chicago or NY. They reconnect all 3 with router and see. It's really trial and error.
As already mentioned if you are noticing a slowdown when connecting 3 upgrade your service. I have had 3 connected on 12 down and 2 up cable and its quite fast. Denver to Chi is 56 ms.
As already mentioned if you are noticing a slowdown when connecting 3 upgrade your service. I have had 3 connected on 12 down and 2 up cable and its quite fast. Denver to Chi is 56 ms.