On Mon, Mar 1, 2021 at 11:55 AM Shaun Tarves <[email protected]> wrote:
> Since upgrading our guacd to 1.3, we have seen RDP connection instability > when having the guacamole configuration set to `any` for an RDP connection > and the server is set to *Require use of specific security layer for remote > (RDP) connections* values of *Not Configured*, *Enabled and set to > Negotiate*, or *Enabled and set to RDP*. > ... > > - In the Windows Administrative Event log, look for: [Warning, > RemoteDesktopServices-RdpCoreTS, Event ID 105] > - In the guacd log for the corresponding remote access server, look > for: guacd[28117]: DEBUG:#011ERRINFO_DECRYPT_FAILED (0x00001192):(a) > Decryption using Standard RDP Security mechanisms (section 5.3.6) failed. > > Feb 8 19:56:18 ip-172-16-10-253 journal: guacd[1322]: > DEBUG:#011ERRINFO_DECRYPT_FAILED (0x00001192):(a) Decryption using Standard > RDP Security mechanisms (section 5.3.6) failed.Feb 8 19:56:18 > ip-172-16-10-253 journal: guacd[1322]: DEBUG:#011BIO_read returned a system > error 104: Connection reset by peerFeb 8 19:56:18 ip-172-16-10-253 journal: > guacd[1322]: ERROR:#011Connection closed. > > You say this has changed when upgrading to guacd 1.3 - did you also upgrade FreeRDP libraries at the same time? If you go back to the previous version of guacd, but keep the FreeRDP libraries the same, do you continue to see the same issues? The reason I ask is because these error messages look more related to FreeRDP than they do to guacd - they are lower-level than Guacamole's error messages - and so I'm wondering if there's something in the underlying FreeRDP library contributing to the issue. It still could be something in guacd - something we need to handle differently - but I'm just curious what all changed when you changed versions... -Nick
