vodafone 3g using dlink does not connect lubuntu 14.04

i click on the nm icon to start vodafone and it doesnt connect. i am currently using bsnl but the service is terrible so i want to switch. i havent done anything because i cant find any suggestions on what to do to make it work. i am trying to work with vodafone rep but he doesnt know linux.

also i am a victim of bug 1438003, not sure if that is relevant.

really sorry not to have any real details.

edit to question:
lsb_release -a;
no LSB modules are available.
Distributor ID: Ubuntu
Description: 14.04
Codename: trusty

uname -a;
Linux salima-P5GC-TVM-S1 3.13.0-57-generic #95-Ubuntu SMP Fri Jun 19 09:27:48 UTC 2015 i686 i686 i686 GNU/Linux

lsusb
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 1130:1620 Tenx Technology, Inc
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 04f3:0235 Elan Microelectronics Corp.
Bus 001 Device 004: ID 2001:7d00 D-Link Corp.
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

additional information added 19 July:
d-Link connects to bsnl network from hcl desktop running Ubuntu OS.
d-Link does not connect to vodafone network from hcl desktop running Ubuntu OS
d-Link connects to bsnl network from computer in vodafone office running Windows
d-LInk connects to vodafone network from computer in vodafone office running Windows