No rdp ou nomachine access after upgrade

[FabsMuller]

Just upgrade from Jammy to Noble and no "upgrade issues" found. It's a VM running on Oracle cloud , ARM64. After upgrade, first access with Nomachine gave a blank screen and nothing else. I can ssh normally and can even run some GUI applications remotely, even systemsettings. But when I try to RDP (or nomachine) I got "Unable to connect to remote host: No route to host". If I telnet to the vm using port 22 I got answer. If I telnet with 3389 or 4000 I got Unable to connect. I upgrade via GUI Nomachine access, which was working fine with Jammy. I have a NFS on another machine at the same network which I can remote access fine (it's a RHEL). Any idea of what can be happening? Both Nomachine and Xrdp services are running fine on the VM. I can see them with systemctl. I reseted the vm many times and things remain the same. SSH ok, RDP/Nomachine not. Thanks is advance.

[FabsMuller]

Good news, I ended up solving. Start another google search today and found that 'No route to the network or to the host <xxx.xxx.xxx.xxx>' is not unusual with SSH. Sometimes a network issue, but as my previous setup was working fine and the only thing changed was the upgrade, I knew my network was fine, including by the fact that I could ssh fine. Dig a little more and found this post, where the solution was firewalld. Tried that and bingo... it worked for Nomachine.RDP is still not working but I'll try to fix it later. Didn't have any problem like that upgrading from Focal Fossa to Jammy. Didn't have any firewall configured before either. Anyway it's working now.