Phone Hotspot blocked?

[Kaleadar]

I have been playing on P99 for a number of years with no connectivity issues. I have recently had to use a Phone Hotspot to connect to the internet. Since I have started doing this I am not unable to connect to P99. Once i get to the server select screen it hangs for about 1 min and then kicks me to the login page.

Any one had this issue and able to resolve it? I know going to a landline of some sort will fix it im sure, but this is not an option for me currently.