Roaming with Wmwifirouter

[Low Timer]

Hello, I'm trying to use wmwifirouter to tether my internet while roaming. I have a Touch Pro 2 on Sprint. When I attempt to use wmwifirouter while roaming, it locks up the phone and then requires a hard reset as the phone then becomes unable to connect to the internet. I can use wmwifirouter while on the Sprint network, but not while roaming.

Is it possible to tether while raoming?

Thanks