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It appears since late of last week there is no longer the ability to RDP onto Windows 7 using the linux client Remmina. Nothing (configuration) has changed on the linux client nor the Windows 7 host with the exception of security updates being installed.

When attempting to log in, i am able to get as far as being presented a prompted with the challenge to accept the certificate however as soon as i click to accept the session closes immediately.

I am able to ping, telnet, etc the host device. No firewall rules have been changed. I have also followed all suggestions below;

Neither works.

I had to follow the suggestion at to get it to work however it is less than ideal

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    Remmina uses xfreerdp to do its underlying connection, you can use it from the command line xfreerdp /v:<ip.of.rdp.server> /u:username /p: this will then connect to your server and hopefully give you some debug info if it fails. – 0x7c0 Jul 7 '15 at 18:42
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Run 'remmina' form commandline to watch output and deduce the root cause.

I was able to solve by:

  1. Deleting my windows self-signed certificate and rebooting so that it would re-create a new one. (mmc.exe>file>add snap-in>certificates>computer account>local computer then Certificates>Remote Desktop>certificates: delete the existing cert)

  2. Then remove the known certificate for remmina/xfreerdp:

    • purge or modify ~/.config/freerdp/known_hosts2
    • purge or modify ~/.freerdp/known_hosts
    • (depending on remmina/distribution versions)
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I had issues with one server too and I'm posting this because I hadn't see this specific solution anywhere. Maybe it helps someone.


I've tried to connect manually with xfreerpd :

xfreerdp -d my-login-domain.com -u username -v myserver.com

And got this:

[INFO][com.freerdp.core] - ERRINFO_LICENSE_HWID_DOESNT_MATCH_LICENSE (0x00000104):The Client Access License ([MS-RDPELE] section 1.1) stored by the client has been modified.

[INFO][com.freerdp.client.x11] - Logon Error Info SESSION_ID [UNKNOWN]

[ERROR][com.freerdp.core.transport] - transport_check_fds: transport->ReceiveCallback() - -1

So I deleted the Client Access License in:

~/.config/freerdp/licenses/BIG-HASH-FILENAME.cal

And also deleted (no need to delete the file, just remove the right row):

~/.config/freerdp/known_hosts2

That's it, restart the application and try again.

PS: (I'm using Fedora 29 and Remmina 1.2.31.3)

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