If the problem does not appear on the same host, the problem lies between the ESX hosts or the net infra. Sent from my Verizon Wireless Phone -----Original Message----- From: Jerry Young <jerrygyoungii@xxxxxxxxx> Sent: Friday, May 27, 2011 08:10 To: isalist@xxxxxxxxxxxxx Subject: [isalist] Re: TMG Reboot Connectivity Issue Nope, that's not it. After moving it to the same ESX host as the other server, you can reboot either and not see this behavior. It worked in the past (when it could reach the EMS box) while on separate ESX hosts. IGMP Multicast mode FTW!!! Nah... not really... seriously, I keep them in Unicast mode. I will be taking NLB out of the picture, though; will put them behind a pair of F5 load balancers in the future. On Fri, May 27, 2011 at 10:17 AM, Jim Harrison <Jim@xxxxxxxxxxxx> wrote: I?m starting to suspect a VMWare / NLB compatibility issue. Does ESX support cross-host NLB? What NLB mode (unicast/multicast) are you using? Have you tried switching between modes to see how things shake out? From: isalist-bounce@xxxxxxxxxxxxx [mailto: [The entire original message is not included]