If that does not work, Disconnect your host adn reconnect your host to the VC. Also make sure you upgrade your host to 3.5. I did not see anywhere that you stated the host was upgraded. You want to do this so you can take advantage of the upgrades 3.5 gives you. Also, after you do the service mgmt-vmware restart you may wanna do this also. service vmware-vpxa restart. You should be good after that.
Hope that helped.
What is your ESX and VC version to be exact and have you done upgrades lately? Virtual Center 2.5 Update 1 should be able to run both ESX 3.0.x/3.5 hosts.
Generally speaking, this problems caused when you do an ESX ugprade because the VPX agent doesn't like to do so and each scenario are different and you have to at least test 5 different steps to resolve your problems and one of them should fix it. I've answered a lot of this questions on the forum you can search more details.
1. Make sure DNS is working correctly if not place /etc/hosts entries for ESX servers should help resolve problems.
2. Manually remove VPX agent with rpm -e vpxagentbuild
3. Restart hostd and vpxa services "service mgmt-vmware restart" & "service vmware-vpxa restart" commands.
4. Double check your / root partition not being filled up and full
5. Check to see if vmware-root folder has been created if not create them.
These should help with many problems with ESX hosts not connected.
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iGeek Systems Inc.
VMware, Citrix, Microsoft Consultant
Does the timeout happen after you enter the root user/pass details and press "Next" or at the end of the wizard?
If it times out after pressing "Next", the issue is being caused by communication with authd or hostd but not the vpxa agent.
Can you connect directly to the ESX server using the VI Client from the VC server?
Do you get any errors when you run the following command on the ESX server? vmware-cmd -l
Is the ESX server swapping heavily or low on disk space?
Find the result of the cmds.
1) vmware-cmd -l
/usr/bin/vmware-cmd: Could not connect to server
(VMControl error -14: Unexpected response from vmware-authd: 511-The process exited with an error:
Incorrectly built binary which accesses errno or h_errno directly. Needs to be fixed.
Can't open perl script "/usr/lib/vmware/serverd/init.pl": No such file or directory
VMServerd Panic: Could not initialize Perl script handler.
511 End of error message)
2) free -m
total used free shared buffers cached
Mem: 262 250 11 0 10 129
-/+ buffers/cache: 110 151
Swap: 541 3 537
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 4.9G 4.7G 0 100% /
/dev/sda1 99M 29M 66M 31% /boot
none 132M 0 132M 0% /dev/shm
/dev/sda6 2.0G 52M 1.8G 3% /var/log
I am not able to connect to server from VI client from VC server. Its giving error for server response time out.