Hello,
I just installed a 60 day trial of SLES 15. I choosed SLES for SAP install option and left packages at the default values.
Now if I connect from Windows 10 via RDP, the connections almost all fail. Maybe 1 of 10 work, mostly after reboot. mstsc is setup to use only 24 Bit color depth.
xrdp and sesman log level is set to info. Firewalld is shutdown (machine is already in DMZ).

xrdp.log
Code:
[20190605-13:14:15] [INFO ] xrdp_wm_log_msg: Please wait, we now perform access control...
[20190605-13:14:15] [WARN ] getsockname() failed on socket 15: Bad file descriptor
[20190605-13:14:15] [INFO ] xrdp_wm_log_msg: Reply from access control: Success
[20190605-13:14:15] [INFO ] xrdp_wm_log_msg: sesman connect ok
[20190605-13:14:15] [INFO ] xrdp_wm_log_msg: login successful for display 201
sesman.log
Code:
[20190605-13:14:15] [INFO ] A connection received from ::1 port 33238
[20190605-13:14:15] [INFO ] Access permitted for user: admin
[20190605-13:14:15] [INFO ] A connection received from ::1 port 33240
[20190605-13:14:15] [INFO ] ++ created session (access granted): username admin, ip ::ffff:192.168.1.13:23856 - socket: 11
[20190605-13:14:15] [INFO ] starting Xvnc session...
[20190605-13:14:15] [INFO ] calling auth_start_session from pid 18972
[20190605-13:14:15] [INFO ] Xvnc :201 -auth .Xauthority -geometry 1920x1080 -depth 24 -rfbauth /home/admin/.vnc/sesman_passwd-admin@localhost:201 -bs -nolisten tcp -localhost -dpi 96
[20190605-13:14:16] [CORE ] waiting for window manager (pid 18973) to exit
[20190605-13:14:16] [CORE ] window manager (pid 18973) did exit, cleaning up session
[20190605-13:14:16] [INFO ] calling auth_stop_session and auth_end from pid 18972
[20190605-13:14:16] [INFO ] ++ terminated session:  username admin, display :201.0, session_pid 18972, ip ::ffff:192.168.1.13:23856 - socket: 11
/var/log/messages:
Code:
2019-06-05T13:14:15.928142+02:00 localhost systemd-logind[2507]: New session c12 of user admin.
2019-06-05T13:14:15.928974+02:00 localhost systemd[1]: Started Session c12 of user admin.
2019-06-05T13:14:15.932982+02:00 localhost xrdp-sesman: pam_unix(xrdp-sesman:session): session opened for user admin by (uid=0)
2019-06-05T13:14:16.461481+02:00 localhost xrdp-sesman: pam_unix(xrdp-sesman:session): session closed for user admin
2019-06-05T13:14:16.463864+02:00 localhost systemd-logind[2507]: Session c12 logged out. Waiting for processes to exit.
2019-06-05T13:14:16.468284+02:00 localhost systemd-logind[2507]: Removed session c12.
Xvnc popup shows:


Any idea what's going wrong?