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Connectivity lost to Virtual Center

Posted on 2008-10-24
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Last Modified: 2012-05-05
Out of the blue today we experienced a point when one of four production ESX Servers went a-wall and was unreachable in the Virtual Infrastructure Client. Once we logged off and back on the connection re-established but that was an intermittent issue which might be related to network issue. Not sure exactly where to start but would like some guidance.
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Question by:bmonroe44
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by:paulsolov
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Check the alerts, what error does it give you if any?  Make sure you're connected to Virtual Center via FQDN.

You may also want to make sure taht you have at least two Physical network ports connected to the vswitch where the console is located.  If you have multiple vswitches you can setup an additional console just in case.  

Is your console on the same subnet/vlan as your production network or is it on the same one?  
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by:bmonroe44
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The errors state that it failed to connect and reconnect to the host. After about 30 minutes we were finally able to re-estabilsh a connection. We only use the FQDN when adding a host and when accessing the VC server. Each server is using 5 physical ports. 2 Console (seperate subnets) and 2 VMkernel ports.  One console is on the same VLAN as the IT department for management purposes and the other is on the production network.
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Looks like I can contribute the issue to the gateway being set differently on that host.
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