Windows 10 pro guest on ESXi 6.7 loses network connectivity with static IP

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Hello all,

I recently installed Windows 10 Pro on a VM hosted on ESXi 6.7.

The new machine gets an IP address from DHCP as followed, running ipconfig:

IPv4 10.1.12.129

Subnet Mask 255.255.255.0

Default Gateway 10.1.12.1

When I assign it a static IP (10.1.12.87) connectivity is lost and this is what I get running ipconfig:

IPv4 169.254.116.155

Subnet Mask 255.255.0.0

Default Gateway 10.1.12.1

Also, when I check the adapter Status -> Details I notice that there’s a line Autoconfiguration IPv4 169.254.116.155

As soon as I change it back to DHCP, it acquires the same IP above (.129) and everything is working again

I verified that it’s not a DNS issue.

I tried to disable and reenable the network adapter, but with no success.

If it’s relevant, the vSwitch includes a dedicated NIC, uplink to the Core switch, the port is untagged.

Any help will be highly appreciated!

Iron Castle Systems