Any 3.5 sense rom I am on always causes me to intermittently drop wifi. It just drops the connection, refreshes and is back in a few seconds. I have seen posts about it on the different posts for the roms so I know its not just me. I have tried wi-fi lock, advanced wi-fi lock and others with no luck. I just accepted it as part of the rom and moved on with it. I loved the sense 3.5 rom, look and all but eventually got annoyed at the drops.
Gingeritis is a great rom, I've used it before. The only reason I left it was because of the VVM I needed to have. I flashed the zip that was posted as a fix but every time it would cause me to somehow break my access to the Mik settings lol. If its not one thing its another!!
Enjoy it, great rom!!