I've got a rooted Boost version of the Marquee running the stock ZV4 rom. I've had this phone for several months, and have been rooted for a while. Tethering was working fine up until about 2 weeks ago. I'm not quite sure what happened, but I'm guessing it had something to do with the recent PRL update for Boost. I've tried every method that I personally know of. Neither USB tethering nor wifi hotspot tethering work anymore. I've tried Easytether, Barnacle, Tethering widget, Foxfi, Wifi Tether, PDANet, et al, all of which worked a few weeks ago, none of which work now. I've tried different PRLs, and I've tried flashing Bloodawn's CTMod rom, with no luck there either. I've tried to USB tether to several different PCs (with the correct LG drivers installed), and none of them worked. I've tried connecting to my phone's wifi hotspot with PCs and other devices, and while they connect (and I can even transfer files between devices over the wifi network, so I know the connection is good), I can't browse the internet via the hotspot. 3G data still works fine on my phone, but I'm getting nothing through any tethering method. Anyone have any idea what could have caused this, or a possible workaround? Could Boost/Sprint have successfully blocked tethering on their network? Are any other Boost users having this issue? Is there another PRL I should try? Is there another ROM I should try? Should I unroot? Any feedback or ideas are appreciated.