Link to airtel internet failed reconnect pending if you continue to receive error messages,

This thing irritating me a lot:
hii friends, I am facing a problem with my Micromax mmx353g usb modem, since long am using it with Airtel prepaid card with 2g pack activation, it had given dead slow speed but after getting advice from airtel representative I have changed the setting from UMTS to AUTO, then its improved and the speed was 80kbps everything was fine but from a week in Auto mode its disconnecting by itself while dropping the line, if I put UMTS mode then its again dead slow of 1.5kbps, I have tried everything to solve the issue, but nothing has happen, and there is no proper response from customer care, please help me to solve this issue, thanks in advance.

I'm not 100 percent sure but this sounds like you could be located where there is a dead spot in the Airtel signal. If the device you're using is portable, try it in other locations. If it works OK in other places, that is the problem and there is little you can do to change it except to look for another provider.