i have a unlocked airtel G-2425G-A router, i have turned on the upnp setting in the router but its not working in p2p game i want to play, its on 3FE49362JJIJ54 firmware update which seems to be the latest one, i think its a firmware issue so i would i like to downgrade it to the last firmware update and see if it works but cant seem to find how to do that, what should i do
