Now a day due to vast gprs users,there exist many problems to users trying to download from airtel mobile office like Downloading failed,No response from web server,Error in gateway,Connection Timeout etc.the reason for that is there are numerous mobile office gprs users.to stop this problem follow these steps
1.Dont downloading any content with your default browser
2.Use Opera Mini,Uc web browsers instead of Built in browser
3.Downloading contents in Night and morning time
4.Avoid to Open gprs in low Coverage area
5.If any error occures just switch off your mobile in 5 minutes then on it
6.Or just close the connection then reconnect it.

and i hope it will improve the situation of airtel mobile office.and stop all downloading problems.