I had the same problem. I use this as the app. It looks like the other internet sharing icon but has a second drop down box.
first box (pc connection) should be set to usb
second box (network connection) needs to be changed from phone as modem to "sprint"
I accidently changed my password playing with it and got the error 67.
I called sprint and told them what I was doing and they said they dont allow using the phone as a modem.
I didn't know I couldn't untill they told me. I asked to be transfered to tech support. I told tech support i couldn't log onto the internet from the phone.
The user name and password is from sprint
Tech support had me dial ##3282#
That took me to another page where they gave me a code to unlock the page
They reset the username and password for me on their end.
it was like my name then
12345609@sprintpcs.com
the password was random too
I did a hard reset and installed the internet sharing app again and viola.. works perfect.
hope this helps.
Don't tell them you are using it as a modem... just say you cant get onto the internet from the phone. Have them reset the username and password for vision.
Also, make sure your wifi is turned OFF on your computer