I found most of this info in this post, and it fixed my phone yay........this should be a sticky......
my phone wouldn't connect to the internet.......giving me ppp code 11 and authentincation error 4
and it works like brand new thanks to
drellisdee
http://forum.ppcgeeks.com/showthread.php?t=29235
Check your connection in connection , settings. Username should be your#@vzw3g.com and password vzw.
Check your MIP setting under ##778 menu against these
MIP Profile
Number of profiles: 6
Active user profile index: 0
MIP_MODE: Mobile IP Prefered
MIP Reg Retries: 2
MIP Reg Retry: 1750 ms
MIP Pre-Reg Timeout: 0
Mobile Node-HA: Enable
Send A Reg: Disable
Dormant Handoff Opt: Enable
MIP Default Profile
Enable Profile: Enable
NAI: mynumber@vzw3g.com (MDN@vzw3g.com)
DUN NAI: MDN@vzw3g.com so you can tether without a tethering package or MDN@dun.vzw3g.com if you want paid tethering
MN HA SPI Set: Enable
MN HA SPI Value: 12C
MN AAA SPI Set: Enable
MN AAA SPI Value: 2
Reverse Tunneling: Enable
Home Address: 0.0.0.0
HA Shared Secret: should be garbled characters
AAA Shared Secret: should be garbled characters
Primary HA Address: 255.255.255.255
Secondary HA Address: 255.255.255.255
DMU Pub Key: 10
MN Authenticator: 0
Programing menu: ##778
Other codes:
##7764726 nam & esn edit
##775 prl update
##374 eri update
##7764726 field diagnostics ----------
CALL Button
Enter SPC Password - 000000
VERIFY
04 Vocode
Select EVRC-B
This will change how the phone compresses and decompresses call audio
Msid#
770-490-3765
home sid/home nid# 41/65535
Did you let another carriers customizations run?