ComputerCraft [Question] [1.33 ?Config?]

Computercraft [1.33]

Hey, i was wondering if its possible to change the wireless modem Range
The Default is about 50. (64 i beleive)
Im using this because i have an email program set up to a Server Computer Which transmits all the codes, but the computers (receivers) with wireless modems have to be within 64 blocks (which is kind of useless) but the program is still neat.
I saw it as a config option but when i changed the properties it didnt seem to work.
Forgive me if this is an obvious answer.

Thanks for the help,
Rapidfire52

Use the latest version / build of forge (server & client):
http://tiny.cc/LFBuild

Make sure the server is stopped when you're editing the config, too. So:
Stop server.
Edit options you want in the config (serverfolder/config/mod_ComputerCraft.cfg)
Save the config.
Start server. (Optional XD)

[NEVERMIND I FIXED IT]

BUT I HAVE ANOTHER PROBLEM

I got it working and thanks, but now I keep crashing… My friend on the serv isnt though..
i tried lowering block range a little. but it keeps crashing till the modem range is at default. :I