Remote Desktop doesn't work anymore on VM

Pierre Briec

Hi,

i've decided to post because i'm going crazy.
I had an old hypervisor running xcp-ng 8.1 and several VMs (win7 and win10) clients on it.
The RDP was working fine.
Last month, i've built a new server with xcp-ng 8.2 and move these VMs on the new server. Now, Remote Desktop doesn't anymore.
I thought it came from antivirus kaspersky and made some changes on VMs but it doesn't work.

So i've tried to move one VM from the new xcp-ng to the old xcp-ng, and it works! RDP works!
I've checked my firewall rules but i haven't found specific rules related to my old xcp-ng allowing RDP port 3389.
Can someone have some ideas as i'm going crazy.
I'm missing something?

thanks
Pierre

Pierre Briec

Darkbeldin

Thanks, the problem came from the switch.
Thanks for your support.
Pierre

dariosplit

You may lose your windows RDP licenses on the new host. It gives me a new activation every time.

Pierre Briec

dariosplit

thanks for your answer
I don't think it's related to licenses.
The same VM is working fine on my old xcp-ng 8.1 host with RDP and not on the new hypervisor xcp-ng 8.2.
I've tried new VM (win7 and win10) client, it's the same. So i've concluded that the problem is not specific to the client but specific to the host or hardware?
Can someone confirm that? and how fix that?

thanks
Pierre

Darkbeldin

Hi Pierre,

Can you give us some info about what error you have on client side when trying to connect?
Mostly i would say it's a network issue, you could try installing a new VM instead of migrating one that could give you some clues perhaps.

Pierre Briec

Darkbeldin

Actually, i've made a backup of VM-Admin stored on xcp-college host and have restored it on xen-college host.
When it's working, in Xcp-ng Center, in the Console tab, i have RDP connexion like screenshot.
On the xcp-college host, if i click on "Switch to Remote Desktop", it does nothing

If i shutdown VM-Admin on xcp-college, and start it on xen-college host, it's working.

Darkbeldin

Pierre Briec Ok to remove any third party issue could you try by using directly RDP from your Windows client not from XCP-center.

Pierre Briec

Darkbeldin

I've already tried. I'm using mremote-ng or windows RDP client to access my VMs, and it's the same. If the VM is stored on xcp-college => not working, and xen-college => working

Darkbeldin

Pierre Briec What's the error from the rdp client?

Pierre Briec

Darkbeldin

the classic error. RDP could not open because

RDP is not activated
Remote Computer is shutdown
Remote Computer is not available on the network

Darkbeldin

Pierre Briec You should check the network part on your host that the only thing that could make sense to me.
From my point of view it's not an XCP-ng issue but most probably a network problem as when you switch host you don't have the same problem.

Pierre Briec

Darkbeldin
If it's true, i've no idea what is wrong.
The VM on the different hosts are on the same network.
Could RDP be blocked by host itself ?

Darkbeldin

Pierre Briec No XCP-ng won't block RDP only way from my pow is network misconfiguration or firewall or switch in the network.

Pierre Briec

Darkbeldin

Thanks, the problem came from the switch.
Thanks for your support.
Pierre

Darkbeldin

Pierre Briec I'm happy it's solved, and happy i was right