Paromshick
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Breslavets
Вот, наткнулся. Если еще актуально, то может быть проблема в этом
https://support.microsoft.com/en-us/help/3172614/july-2016-update-rollup-for-windows-8.1-and-windows-server-2012-r2
Цитата: Symptoms
After you apply this update on a Remote Desktop Session (RDS) host, some new users cannot connect to an RDP session. Instead, those users see a black screen, and they are eventually disconnected. This issue occurs at unspecified intervals.
.
Cause
During virtual channel management, a deadlock condition occurs that prevents the RDS service from accepting new connections.
Resolution
To fix this issue, install November 2016 Preview of Monthly Quality Rollup for Windows 8.1 and Windows Server 2012 R2 (KB3197875) |
И кстати, Exchange...
Цитата: Symptoms
When a service such as Exchange server tries to reestablish the Kerberos client session during a cluster failover, it may cause the system to become unresponsive. Additionally, an LSASS CPU spike occurs after the failover.
Resolution
Microsoft Windows has released a fix that contains new opt-in behavior for the Kerberos client to address this issue. By enabling the Kerberos parameter, the Kerberos client can bypass the CPU intensive action of purging compounded tickets.
1.In Registry Editor, locate and then select the following subkey:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Lsa\Kerberos\Parameters
2.Right-click Parameters, point to New, and then click DWORD Value.
3.Type AllowStaleDeviceAuthzData as the entry name, and then press Enter.
4.Right-click AllowStaleDeviceAuthzData, and then click Modify.
5.In the Value data box, type 1, and then click OK. |
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Остальное от лукавого, ибо врядли их забанили в гугле, но пустить саппорт по ложному следу вы таки сможете, что, в первую очередь, не в ваших интересах. 
