help my internet connection isnt working

[throwback1718]

my internet sharing isnt working
It worked fine with my first mogul but
after I went to sprint and got a replacement phone,
I tried to use the internet connection sharing. I press on connect
and the error that keeps coming up is
Error code 67 registration failure your pcs vision username and or password may be incorrect
why does this keep coming up? did the person at the sprint store set up my phone correctly?
what could I do to fix this problem??
the phone by itself goes on the internet perfectly without any problem

[morganlowe]

What ROM do you have on it?

Have you run IOTA?

I had the same issue so many times I learned how to reset all the internet connections myself, but you need your unlock code to do that. You can call sprint and ask for the code.

[throwback1718]

its the sprint rom that came with the phone 3.56

can you please help me and tell me what to do and how to do this myself ?
it will be very helpful thanks...