Acquire Player Showing as not in Contact but Responds to Ping

Question:

In Site Manager, I have an Acquire Player which is showing as being out of contact, but I can Ping it from another PC on the network.  It does not responsd to any remote reboot or interaction attempts, but I get an authentication error when trying to File Transfer to the Player.  How can this be resolved? 

Resolution:

It is likely there is an authentication issue with the PLUS! Network, which usually can be cleared with the 2nd Chance options in Site Manager.