Hi everyone, hope you are doing well.

Recently, we’ve been doing some testing and scratching our heads since its impossible to succeed.

We’re attempting to connect to an Asset using Passwod Safe RDP session, but the PBSM log message shows as follows:
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2025/06/27 11:47:45.577 531988 523196 INFO: RDP Handler 531988 starting
2025/06/27 11:47:45.592 531988 523196 WARNING: Could not open HKLM\SYSTEM\CurrentControlSet\Services\HTTP\Parameters\SslBindingInfo\0.0.0.0:443 0x2
2025/06/27 11:47:45.592 531988 523196 INFO: Reading self signed cert
2025/06/27 11:47:45.795 531988 534272 INFO: (RDP server) Client Security: NLA:1 TLS:1 RDP:0
2025/06/27 11:47:45.795 531988 534272 INFO: (RDP server) Server Security: NLA:0 TLS:1 RDP:0
2025/06/27 11:47:45.795 531988 534272 INFO: (RDP server) Negotiated Security: NLA:0 TLS:1 RDP:0
2025/06/27 11:47:45.858 531988 534272 INFO: (RDP server) Accepted client: CVLP-JPALACIN
2025/06/27 11:47:45.858 531988 534272 INFO: (RDP server)  rdpdr
2025/06/27 11:47:45.858 531988 534272 INFO: (RDP server) Accepted channels:
2025/06/27 11:47:45.858 531988 534272 INFO: (RDP server)  cliprdr
2025/06/27 11:47:45.858 531988 534272 INFO: (RDP server)  drdynvc
2025/06/27 11:47:45.858 531988 534272 INFO: (RDP server) Active rdp encryption level: NONE
2025/06/27 11:47:45.858 531988 534272 INFO: (RDP server) Selected rdp encryption method: NONE
2025/06/27 11:47:45.858 531988 534272 INFO: (RDP server)  rdpsnd
2025/06/27 11:47:46.014 531988 534272 INFO: (RDP server) Local framebuffer format  PIXEL_FORMAT_BGRA32
2025/06/27 11:47:46.014 531988 534272 INFO: (RDP server) Remote framebuffer format PIXEL_FORMAT_RGB16
2025/06/27 11:47:46.545 531988 534164 INFO: Connecting RDP session 370c9bdeec21e93c578f55429286e0700ffc71c73f8d6c5aa8cf9e896efc7561 to (Domain).com.pe\PAM_(account)@a(asset).(domain).com.pe]:3389
2025/06/27 11:48:01.878 531988 534164 ERROR: (RDP client) freerdp_tcp_connect:freerdp_set_last_error_ex ERRCONNECT_CONNECT_FAILED T0x00020006]
2025/06/27 11:48:01.878 531988 534164 ERROR: (RDP client) failed to connect to (asset).(domain).com.pe
2025/06/27 11:48:01.878 531988 534164 ERROR: Failed to connect RDP session
2025/06/27 11:49:01.906 2136 2432 INFO: RDP Session 531988 ended

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So far we’ve checked:

User to RB connection through port 4489 -- OK

RB to Asset Connection through 3389 --- OK

PAM account is inside the Remote Desktop Users and Administrators rights inside the Asset

Functional account test is not working (through “Test” within the Managed system) but we can use it to connect via RDP to the appliance just fine, as well the PAM user. Outside PWS the connections work.

Any ideas??

Kind regards.