RDS

Login to Gateway Servers to find the events – You can see the resource authorization policy is not meeting the requirements. Refer below event – Log Name:      Microsoft-Windows-TerminalServices-Gateway/Operational Source:        Microsoft-Windows-TerminalServices-Gateway Date:          2/22/2015 12:42:30 PM Event ID:      301 Task Category: (5) Level:         Error Keywords:      Audit Failure,(16777216) User:          NETWORK SERVICE Computer:      gateway.careexchange.in …

Login to the 2012 R2 Gateway Server Start- Administrative Tools – Remote Desktop Services – Remote Desktop Gateway Manager Right Click on the Server Name – Properties Set the Value for – Maximum Allowed Simultaneous Connections – Click Apply – OK