Can't RCON a server when it isn't empty.

[JohnDoeAntler]

Successful connection only work on a empty server. When connect to a server which filling in people(not local connnection), it would alert a error.

Error messages:

24/01/2018 22:17:35 - Error reading RCON packet from server: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: startIndex

[JohnDoeAntler]

https://imgur.com/a/BPboF