During an SRM (5.0) failover, a VM failed during the IP customisation failed at step 11. It was strange as we hadn’t seen this error in quite a while.
11. Power On Priority 3 VMs Error – Cannot complete customization, possibly due to a scripting runtime error or invalid script parameters (Error code: -1). IP settings may have been partially applied.
Looking through the SRM logs, they pointed to an error in C:WindowsTEMPvmware-imcguestcust.