Please create a bug report containing text backup, halcust and steps to reproduce the issue and let me know when It's done. I have to debug it myself to get better idea of what could be wrong.
This is not the issue of upgrade SERP. But serverip.dat in this case contains the value: 192.168.88.12:1301, so this is local IP of the server with SERP.
Anyway I don't understand what do you me...