Error while connecting RDP "an authentication error has occurred the token supplied to the function is invalid".

an authentication error has occurred the token supplied to the function is invalid

I have installed xrdp 0.9.8 at server side.

Remote desktop connections are working fine when i am connect it from windows 8/10.

but when i am trying to connect RDP from windows 7 it is showing error which is showing on left side.

in xrdp 0.9.8 TLSv1.2 and TLSv1.3 is added by default.
in older version of windows system TLSv1.3 was not supported. thats why it is not connecting with xrdp server.

To resolve this issue from server side follow the steps below.
1. Login to xrdp server.
2. navigate to xrdp configuration file location,

$cd /etc/xrdp
$vim xrdp.ini

ssl_protocols=TLSv1.2, TLSv1.3
ssl_protocols=TLSv1, TLSv1.1

3. Restart xrdp service.
$ service xrdp restart


  1. super, thank you, this post helped , worked with charm. thank you once again

  2. You have been a great help!...Thank you very much!

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  4. I spend 1 day and this worked! Thank u.

  5. Grt thank you.
    This helped me to resolve the issue at once.

  6. Just install KB2830477 update, fixed it for me on Windows7.


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