Ok sushan, I think it it D'link not Glink right.
Have you installed usb modem driver properly? it is reflecting in your modem list (control panel)? if so, click on properties, then diagnostics while plugin the modem the ... it should display few "PASS" stats.
You can also try with deleting all USB root hubs from device management and reboot the PC... usb's will be detected automatically... do a fresh install of modem driver and try.
do let me know.