Okay we have about 6 Netbackup Appliances - 5230
We have always used the Application Web Console - Previously but now - Unable to check for Avalible Software Updates on all devices?
Maybe it's a co-incidence but they are running on a couple of different versions 2.6.0.4 and 761
So we can call Test Home - This works fine, but no update with regard to Software,
We do use a proxy - this is not locked down to IP / Ports out
Normally we would just select Manage > Software Updates and from the section haof of the screen 
Help please - I seriously do not want to manually download 3 splits .. cat > md5 check > yawn, Thats the whole purpose of buying Appliances.
We tried support however they lead my colleague down the manual update route.
This message is also not v helpfull
From the console option - I tried ..
Download SYMC_NBAPP_update-2.6.0.4-2.x86_64.rpm
Open /tmp/version.check fail or download version file fail by proxy.
Any logs on the appliance that I can check with please?
Is there anything in the SQID proxy logs I could grep for outgoing??