Comment 11 for bug 1860165

The root cause for Carmen's issue in the WCP3-6 lab is an IP collision on the PXE network with another lab. In addition to get the lab config fixed the code change in https://review.opendev.org/737292 is a preferred way to connect to the controller instead of using the pxenetwork IP. Although this change won't fix the underlying lab configuration issue it will help avoid data loss in similar cases.