Panimage multimedia novel 7" won't connect to interenet, please help???

AUGH I'M SO ANNOYED RIGHT NOW.

Last month my Pan digital Novel was working fine with my old router's wifi connection yet when I moved to Arris TG852 with WPA2 protection it can't connect anymore. I type in my password and I keep getting the "wrong password" or "unable to connect" error when I'm sure that I keep typing it correctly. I've tried switching my router off a couple of times yet it still doesn't frikking WORK.

I don't want to switch to WEP due to the risks but will I have to to get this damn thing to download ebooks???

Please help me. OH PLEASE PLEASE PLEASE PLEASE