Tag Archive: Cannot contact the specified host. The host may not be available on the network

ESXi hosts disconnected in vCenter Server

While upgrading aย VMware vCenter Server to the latest release, 5.5 Update 1b which can be downloaded here, i ran into twoย issues while trying to connect the ESXi hosts when the upgrade was completed. The ESXi hosts were all disconnected after the vCenter Server upgrade. The solution/s to my problem/s are documented in different VMware knowledge …

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