tata photon plus not connecting on one of my two laptops? please help!

my sony vaio laptop does detect tata photon plus device when plugged in. however it does not connect to internet and whenever i click on connect option it gives the message: connection terminated. redial. on my device manager i uninstalled all usb composite hubs in universal bus controllers option. scanned hardware changes. and all the drivers were reinstalled successfully. however the problem still remains and photon plus is not connecting.

when i plug in it to dell laptop, it connected without any error.

please resolve the issue.

thanks
Rajamit

help please. its urgent. spent my whole day trying to figure out the problem.