RDP suddenly stopped working on two of my computers - Apr 2021

NerdN 1 Reputation point
2021-04-10T03:09:30.04+00:00

I have looked at all the other posts and tried the suggestions there, but none of them has worked.

Short story, I have been using RDP for years and years and it has been working through various windows updates from XP to 10. I am guessing the latest update 20H2 made some changes to these computers that I cannot RDP to them anymore.
I have tried everything and looked at the registry as some posts suggest, firewall, windows version, deleted and created new credentials, .... to no avail.

when I look at the process through Wireshark, I see that the target computer (it happens on both of my win10 machines) closes the TCP connection with a RESET and I get this error message "This computer can't connect to the remote computer"

I get the same error message regardless of which computer I use to RDP into these two PCs. so I have eliminated the possibility that it is an issue with the client side.

Any thoughts?

Remote Desktop
Remote Desktop
A Microsoft app that connects remotely to computers and to virtual apps and desktops.
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  1. Leila Kong 3,691 Reputation points
    2021-04-12T08:24:16.623+00:00

    Hello @NerdN ,

    It depends. Please check the following document for troubleshooting:
    https://learn.microsoft.com/en-us/windows-server/remote/remote-desktop-services/troubleshoot/rdp-error-general-troubleshooting
    https://learn.microsoft.com/en-us/troubleshoot/windows-server/remote/troubleshoot-remote-desktop-disconnected-errors
    https://learn.microsoft.com/en-us/windows/client-management/troubleshoot-tcpip-connectivity
    https://kb.wisc.edu/waisman/page.php?id=100203

    Best regards,
    Leila

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  2. NerdN 1 Reputation point
    2021-04-13T23:42:35.05+00:00

    JeanSebastienGagnon-2979 , interesting, I am using Bitdefender as well. will you be kind and elaborate on what the issue was and how you resolved it?
    I even disabled bitdefender and still had no luck!?

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  3. NerdN 1 Reputation point
    2021-04-19T19:16:41.093+00:00

    I finally solved the problem by removing the BD and that fixed the issue. RDP working fine now.