KT connect with intranet

Hello guys,

is there a way to connect my KT to an access point which is not connected to the internet? i tried the usal way but it says:
"Your internet connection has failed. Contact your internet service provider for further assistance."

the network is ok so far my other divices are able to connect without any problems.

i think the problem is the kindle tries to connect to an amazon auth server or sth like this, so i need to bypass it.

My kindle touch is running on firmware 5.1.2 and is jailbroken

thanks for helping

regards,
LRond