P.S. I am just trying to figure out why "add to basket" in the "productinfo" (e.g., http://localhost:1080/shop/productinfo/10106) page does not work, while it works in the "catalog", e.g, http://localhost:1080/shop/catalog/100.
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...