Default [Q] Need help for wifi

I used the new rom version 2.1 for two xperia Tx in here (http://forum.xda-developers.com/show....php?t=2696405) .everything is ok.however when two xperia Tx phone connect on the same wifi network. it's a duplicate address.so only one xperia Tx can use the internet.see wifi bug fix version v1.3 download link but it has been die. (any pro can fix this bug.thanks so much!