I had some SureBackup jobs running, where the Heartbeat, Ping and Script test run successfull on EVERY VM, EXEPT our exchange, The mail script failed on that one
Since I mostly use Win 2008R2 servers and VMXNET3, I decided to install the MS hotfix KB2550978. And while I was at it i also upgraded our ESXi 5.0 to Update 1 (and upgraded vmtools on all guests)
Hoping this would help filx the failiure on the mail script.
Afther this process NONE of my VM's passed the ping and Script test. They all passed the Heartbeat tho.
I tried different tings, creating new fresh backups, recreating application groups, Virtual labs and jobs.
Nothing seemed to help.
Since all of my VMs and VeeamProxies are on the same network, the manual actually suggest to use Basic configuration of the network in the Virtual lab.
So i did this when recreating the Virtual lab. Remember this was the settings I had used before MS hotfix, ESX update and vmtools. It worked.
I got in contact with Support, and they kindly logged on to my system. His first test was to create the Virtual lab network manually.
Guess what. The verification worked just as before the hotfix,ESX update and vmtools.
So if anyone exprience any problems with surebackup after these updates (I obvisually dont know witch, since I did them all at once, shame on me), setting up the vLab's network manually might help you too.
(I still have the same issues with exchange scirpt verification, ping and heartbeat works, but thats another storrry)

Fiskepudding.