[ovirt-users] Importing VM from Xen Server 7.1

Hi all, resuming the "dead" thread "Importing VM from Xen Server 6.5" (https://lists.ovirt.org/pipermail/users/2016-August/075213.html) I'm trying to import via GUI a VM from Xen Server 7.1 in a host Centos 8.4, oVirt 4.4. Created the SSH key for vdsm user, added the IP in the host target firewall, an ssh connection works, installed netcat on the target host, but like the original thread, when i execute the "load" command for getting the VMS list, I get the following error in the host and in the engine: Aug 27 12:04:43 centos8-4.host vdsm[78126]: ERROR error connecting to hypervisor#012Traceback (most recent call last):#012 File "/usr/lib/python3.6/site-packages/vdsm/v2v.py", line 193, in get_external_vm_names#012 passwd=password)#012 File "/usr/lib/python3.6/site-packages/vdsm/common/libvirtconnection.py", line 107, in open_connection#012 return function.retry(libvirtOpen, timeout=10, sleep=0.2)#012 File "/usr/lib/python3.6/site-packages/vdsm/common/function.py", line 58, in retry#012 return func()#012 File "/usr/lib64/python3.6/site-packages/libvirt.py", line 148, in openAuth#012 raise libvirtError('virConnectOpenAuth() failed')#012libvirt.libvirtError: End of file while reading data: Ncat: No such file or directory.: Input/output error Trying the command virsh -c xen+ssh://root@xen7.target the same error: error: failed to connect to the hypervisor error: End of file while reading data: Ncat: No such file or directory.: Input/output error Any ideas? Thank you for your time and help. Francesco