Default Gateway changing when configured from DCUI

Hi Community,

We have a couple of re-purposed ESXi 4.1 hosts. They were moved from one blade server chassis to another to be put into service for another project.

We are re-configuring them (re-IPing) them, but we are seeing the Default Gateway setting we enter not stick- in other words, we will configure a default gateway, save the setting in the DCUI, restart the management network on the Host, and the default gateway either reverts to what it was before we changed it or it zeros out.

Is this an issue with pre-existing vmkernel ports on these hosts?

Has anyone seen and fixed this before?

Thanks!

Mike