Windows SERVER2008R2 is installed on server 3650m4 today, and only one can be accessed remotely with administrator when the client accesses remotely. While the other one with administrator access success, the first remote up will automatically interrupt.
Workaround:
1 Administrative Tools-Remote Desktop Services-Remote Desktop Session Host Configuration
2 rdp-tcp Right-click Properties. Network adapter-Maximum number of connections, 2.. By default, if you do not add the Terminal Services feature, the maximum can only be adjusted to 2 connections at a time. If you only need an account to log in remotely, then this step will not be done
3 Remote Desktop licensing mode → Right click → properties → general → restrict the use of one session per user. Remove the front tick → OK. Check it out, it's in effect.
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Issues with Windows SERVER2008 Server remote Access