Good day. Faced with the following problem and I cannot find a solution.
I have two subnets 192.168.1.0/24 and 192.168.2.0/24. Subnets connected through VPN.
The first subnet has vCenter Server (192.168.1.10) and a computer with vSphere Client (192.168.1.11).
In the second subnet has ESXi (192.168.2.8) and a computer with vSphere Client (192.168.2.11).
The problem is this: after a random time vCenter Server will no longer see ESXi.
In a detailed investigation revealed the following pattern:
1) When vCenter no longer see the ESXi, is not possible to ping the ESXi from Server OS. (Windows Server 2012).
2) computer with vSphere Client (192.168.1.11) continues to see ESXi, pings , and may be connected directly to the ESXi.
a) If you do not touch anything, then after a while no longer able to ping ESXi and from this computer.
3) Computer with vSphere Client (192.168.2.11) continues to see ESXi, pings , and may be connected directly to the ESXi. No problems to connect from this workstation any time.
After connecting directly to the ESXi, for example change the IP to 192.168.2.9, and then back to 192.168.2.8 - vCenter Server immediately begins see the ESXi ( including pings ).
I first decided that the problem in ESXi firewall and turned it off by this command «esxcli network firewall set - enabled false», but this did not solve the problem .
In any case, disabled firewall completely on the vCenter Server just does not solve the problem.
ESXi version: 5.1.0, 1065491
vCenter version: 5.1.0, 1235232
In what may be a catch ?
Thank you for your help.
P.S. sorry for my bad english