Adding a VMware ESXi/ESX host to VMware vCenter Server fails
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Article ID: 341384
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Updated On:
Products
VMware vCenter ServerVMware vSphere ESXi
Issue/Introduction
Symptoms:
Cannot connect or reconnect the ESX\ESXi host to vCenter Server.
Adding an ESX\ESXi host to vCenter Server fails with the error:
Cannot contact the specified host hostname\IP. The host may not be available on the network, a network configuration problem may exist, or the management services on this host may not be responding.
After upgrading vCenter Server, a host does not reconnect to vCenter Server.
see the error similar to:
Unable to access the specified host. It either does not exist, the server software is not responding, or there is a network problem.
Unable to add host to vCenter.
In the /var/run/log/vpxa.log file, entries look similar to:
'App' 7338928 error] [VpxaHalCnxHostagent] Failed to discover namespace: Success 'App' 7338928 warning] [VpxaHalCnxHostagent] Could not resolve namespace for authenticating to host agent 'App' 4283312 verbose] [SchedulePolling] Last stats polling used [0] ms 'App' 3076461728 verbose] [VpxaHalCnxHostagent] Creating temporary connect spec: localhost:443 'App' 3076461728 error] [VpxaHalCnxHostagent] Failed to discover namespace: Success 'App' 3076461728 warning] [VpxaHalCnxHostagent] Could not resolve namespace for authenticating to host agent 'App' 5815216 verbose] [SchedulePolling] Last stats polling used [0] ms 'App' 4017072 verbose] [VpxaHalCnxHostagent] Creating temporary connect spec: localhost:443
In the /var/run/log/hostd.log file, entries look similar to:
F66C36D0 panic 'App'] error: Invalid argument : No IP addresses found for addr='localhost', port=12001 : (0) 'Unknown error' F66C36D0 panic 'App'] backtrace: [00] eip 0xf7d21965 [01] eip 0xf7c0e5c0