Hi all,
I have this annoying ESXi 5.1 server that's causing me problems..
It used to be an ESX 3.5 server that I re-installed as an ESXi 5.1 yesterday.
Just to explain all the backgrounds, I've got to say that there were 2 identical servers that got through the same process (ESX 3.5 re-installed and re-configured as ESXi 5.1) -- and only one of them causes problems.
So, the problem is that this servers constantly loses network connectivity every 2 minutes or so.. and even that's not entirely correct, why?
Well, the server is connected to vCenter Server 5.1 as well, there it shows up as Not Responding. If I hit Connect from the vCenter, the servers comes back to life and is ok. For a minute or so, and then goes back to the same old status of Not Responding.
Weirdest thing is, that when the server is in that limbo situation (and I call it that because of the following), I can connect to it via SSH and even trhough vSphere Client directly.
I've ruled out an IP Conflict problem (and even tried changing the IP of the server).
The VLAN and networkiong configuration seems to be alright (though I cannot 100% rule it out because clearly it seems to be something ralated to networking).
The logs are not much of a help so far (to my naked eye).
The firmware is up to date.
And remember, there is another server, same model, same configuration, same network properties - And it works fine!
I'm clearly out of my league on this matter,
I think it might be something to do with networking configuration but I'm not expert in that field and don't know what to look for.
The only weird thing I could find is the time configuration. The BIOS time is OK but the time on the ESXi is 2 hours forward, and changing either of them simply change the other as well forward or backwards (and I can't seem to fix it).
I don't know if that got anything to do with my problem, but thought bringing that up dowsn't hurts anyone.
Help! :\