I have a host disconnected on my cluster, and when I try to connected again, the vcenter become unavailable.
The ESXi 5.1 U3, and vcenter is on version 5.1 U1
I checked the compatibility matrix and this configuration is supported.
We plan to migrate to a new version to have support but now I need to fix this issue first.
Thank you in advance for your help.
Do you happen to get any specific error messages when trying to reconnect?
Also have you tried any of the following?
Yes I did all the actions already mentioned.
The problem is that the vCenter becomes unavailable and when it reconnect I found the host in disconnected status.
The errors I found on vpxa told me that there is a connection reset by peer.
Thank you in advance
To be quite honest, vSphere 5.1 is so old at this point that I doubt you're going to get any good help. You should have upgraded literally years ago and so have really missed the boat. Sounds like now might be the moment your hand is forced and to deploy at least a 5.5 vCenter Server Appliance and join those 5.1 hosts to it so you at least have management.