

- #Microsoft autoupdate cannot connect to update server Patch
- #Microsoft autoupdate cannot connect to update server software
- #Microsoft autoupdate cannot connect to update server windows
To enable LLMNR, follow the steps below."

Re-enabling it seems to restore proper IP Address resolution which in turn restores connectivity to the Dentrix Database.
#Microsoft autoupdate cannot connect to update server windows
This is a Windows Group Policy that many users have disabled over the years. It appears that this issue can be resolved by enabling "Link Layer Multi-cast Name Resolution" (LLMNR). "After working with Microsoft, we believe that we have found a solution that allows you to keep the critical Microsoft Security Update installed. However, since installing the latest cumulative updates, this policy prevents users from accessing their shared server folders.ĭentrix has acknowledged the issue and stated that after coordinating with Microsoft, disabling this group policy is the recommended way to resolve this issue. Turn off multicast name resolution group policy This is done by enabling the 'Turn off multicast name resolution' group policy under Computer Configuration > Administrative Templates > Network > DNS Client.
#Microsoft autoupdate cannot connect to update server software
To access shared folders again, admins had to uninstall the cumulative update, which is not a good solution as it removes security fixes.Īfter users began reporting the issue on BleepingComputer's forum, users determined that many affected users are using the Dentrix Dental Practice Management software in their offices.Ī longstanding support recommendation for Dentrix customers to reduce network lag has been to disable multicase name resolution (LLMNR) on Windows workstations. If attempting to access the shared folder via the server's IP address, users can properly connect to the shared folders. Since installing the updates, some corporate users have reported having issues with DNS resolution that prevent access to shared folders on servers when trying to access them by the server's name.
#Microsoft autoupdate cannot connect to update server Patch
System.IO.IOException: Authentication failed because the remote party has closed the transport stream.Īt Windows 10 users have issues with DNS resolution after installing the latest Windows 10 cumulative updates released this week.Īs part of this week's April 2021 Patch Tuesday, Microsoft released the Windows 10 KB5001330 & KB5001337 cumulative updates to fix various security vulnerabilities and bugs discovered in the operating system. End of inner exception stack trace -Īt .CreateUpdateServer(Object args)Īt .GetUpdateServer(String serverName, Boolean useSecureConnection, Int32 portNumber)Īt .UI.圜onnect(String serverName, Boolean connectSecurely, Int32 socketNumber)Īt .UI.圜onnect(String serverName)Īt .UI.(String serverName) > System.IO.IOException: Authentication failed because the remote party has closed the transport stream.Īt .StartReadFrame(Byte buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest)Īt .StartReceiveBlob(Byte buffer, AsyncProtocolRequest asyncRequest)Īt .CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest)Īt .StartSendBlob(Byte incoming, Int32 count, AsyncProtocolRequest asyncRequest)Īt .ForceAuthentication(Boolean receiveFirst, Byte buffer, AsyncProtocolRequest asyncRequest)Īt .ProcessAuthentication(LazyAsyncResult lazyResult)Īt (Object state)Īt 圜ode(Object userData)Īt .ExecuteCodeWithGuaranteedCleanup(Tr圜ode code, CleanupCode backoutCode, Object userData)Īt (ExecutionContext executionContext, ContextCallback callback, Object state)Īt (ExecutionContext executionContext, ContextCallback callback, Object state)Īt (LazyAsyncResult result)Īt (Byte buffer, Int32 offset, Int32 size)Īt (Byte buffer, Int32 offset, Int32 size)Īt (Boolean async) : The underlying connection was closed: An unexpected error occurred on a send. Message: Error connecting to Update server 'CORP' I uninstalled the agent on my desktop machine, installed the Remote Console, upgraded it to SP1, but cannot connect to the server.

I've successfully upgraded SCE/WSUS to SP1.
