since 29th of April every day past midnight my Windows Server 2012 R2 networking hangs - AD isn't working, DNS isn't working, print server isn't working and so other services. I have to reboot server to retain functionality.
When I look from midnight into Event Logs, this Warning appears first:
TCP/IP failed to establish an outgoing connection because the selected
local endpoint was recently used to connect to the same remote
endpoint. This error typically occurs when outgoing connections are
opened and closed at a high rate, causing all available local ports to
be used and forcing TCP/IP to reuse a local port for an outgoing
connection. To minimize the risk of data corruption, the TCP/IP
standard requires a minimum time period to elapse between successive
connections from a given local endpoint to a given remote endpoint.
10 minutes after Error:
The processing of Group Policy failed because of lack of network
connectivity to a domain controller. This may be a transient
condition. A success message would be generated once the machine gets
connected to the domain controller and Group Policy has successfully
processed. If you do not see a success message for several hours, then
contact your administrator.
DNS server is full of these Errors:
Event 4015 - The description for Event ID ( 4015 ) in Source (
Microsoft-Windows-DNS-Server-Service ) cannot be found. Either the
component that raises this event is not installed on your local
computer, or the installation is corrupted. You can install or repair
the component on the local computer, or contact the component
manufacturer for a newer version.
When server is in hanged state, only 20% RAM is occupied and CPU is 1-5% - nothing suspicious.
Does anyone else experienced this? How to diagnose and solve this problem?
