My WiFi does not work in Sony Ericsson

My Sony Ericsson X8's wifi has stopped working about a few weeks after rooting and installing the GingerDX v030. Even though it is turned on and scanning, it does not connect to any WiFi. I have tried rebooting, and also resetting the WiFi antenna (i.e., either by turning it off then on, or by switching to airplane mode and then back out of it). I have to use the stock kernel otherwise the phone hard bricks.