Re: ESXi 5.5 Hosts disconnecting from vCenter 5.5.0b

Can you have a look at the vmkernel log for the period of disconnects.

http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay?javax.portlet.begCacheTok=com.vignette.cac…

I have seen loads of this in 5.1, not entirely sure if I ever came across a 5.5 Gen 8 experiencing the issue or if HP fixed the AMS in that build out of the box.

Otherwise it is the usual suspects to look at for the timestamp and maybe a couple of minutes before:

Host:

vmkernel.log

vpxa.log

hostd.log

vCenter Server:

vpxd.log