Problems after install security patch ESXi670-201912001 in ESX cluster

[VC211]

Hi,

After installing the security patch (ESXi670-201912001) in all our ESXs that are part of a cluster, we have had network problems (timeouts, lost connections) and even had error alarms on the hosts.

The new patch came with a new version of the VMWareTools, so we have installed them on some of our virtual machines.

To try to solve the problem we are considering going back to the pre-patch  ESX SW version, but we are concerned that there is some kind of compatibility problem between the new VMWareTools and the ESXs version.

Would there be a problem with this?

Has anyone else had problems after installing the patch (ESXi670-201912001)?

Thanks

[ComputerGuy07]

Hopefully, you have a solution already.

FYI: VMware tools is typically forward and backward compatible, but always test things.

[Alex_Romeo]

Hi,

Considering that it is the latest patch released, I suggest you call vmware support and decide with them the best solution.

ARomeo

P.S: When you have the solution put it in the post that can be useful to other people. Thank you

[Chapstickk]

Similar issue on certrain hosts in one of our clusters.  It kills VSAN,HA and host would often go unresponsive, still no fix.