[Error messages while trying to get online]

for several days we had our system running without any problems.

1 production computer and 2 display computer with each 4 outputs

today, when i tried to go online, i got several error messages. (see below)

when i check the connection for each display in the tier base, they are all ok and green...

 

any hints about the error messages?

 

From Display "Display 5" of Stage Tier "Base" of StageList of Stage, 2018-05-18 10:01:40
Setting error: 3; Command: authenticate; Authentication failed; 10.1.249.200

From Display "Display 1" of Stage Tier "Base" of StageList of Stage, 2018-05-18 10:01:40
Setting error: 3; Command: authenticate; Authentication failed; 10.1.249.200

From Display "Display 5" of Stage Tier "Base" of StageList of Stage, 2018-05-18 10:01:40
Setting error: 1; Not authorized for: fileServer3

From Display "Display 5" of Stage Tier "Base" of StageList of Stage, 2018-05-18 10:01:40
Runtime error; Unrecognized command: 78

From Display "Display 5" of Stage Tier "Base" of StageList of Stage, 2018-05-18 10:01:40
Runtime error; Unrecognized command: 11

From Display "Display 1" of Stage Tier "Base" of StageList of Stage, 2018-05-18 10:01:40
Setting error: 1; Not authorized for: fileServer3

From Display "Display 1" of Stage Tier "Base" of StageList of Stage, 2018-05-18 10:01:40
Runtime error; Unrecognized command: 78

From Display "Display 1" of Stage Tier "Base" of StageList of Stage, 2018-05-18 10:01:40
Runtime error; Unrecognized command: 11

From Display "Display 1" of Stage Tier "Base" of StageList of Stage, 2018-05-18 10:01:40
Network error; Display computer: Connection Lost

From Display "Display 5" of Stage Tier "Base" of StageList of Stage, 2018-05-18 10:01:40
Network error; Display computer: Connection Lost

[WATCHOUT Technical Notes - 2015]

I´m trying to download / read some of the pdf files in here and it get´s me error messages...

 

Sorry, there is a problem

The page you are trying to access is not available for your account.

Error code: 2C171/1

seems to be the some similar error corresponding to John...