Hi everybody,
Got a fun one, kinda. So started to upgrade from hyper-v 2012 core 2012 to R2. Migrated the VMs. Formatted the system drive. Reinstalled from scratch. Added to the domain. Rebooted.
I could remote desktop, connect with Hyper-V manager.
Connected back to the hyper-v 2012 R2 core with RD, installed iSCSI and set the target, installed and configured MPIO. Rebooted.
And I lost access from every where to the Hyper-V Core. The only way I can access them is via remote powershell sessions. Server manager does not work, I can't ping anymore, can't RD to them, can't SNMP either. They are in the same OU as the other servers still running 2012 normal.
Any idea why, after the second reboot most access went down the drain ?
I feel like the system thinks it is not on a domain network anymore and thus the firewall started. But even stopping the firewall did not help for one of the 2 servers. And I d rather not disable the FW anyway. I also tried hvremote, no luck.
Regards,