用IE上網(wǎng)遇到麻煩

最近用IE上網(wǎng)總是出現(xiàn)如下提示，這是怎么回事��？請大家?guī)臀医鉀Q一下，先謝了！

ERROR

The requested URL could not be retrieved

While trying to retrieve the URL: http://www.126.com/

The following error was encountered:

• Access Denied.

  Access control configuration prevents your request from being allowed at this time. Please contact your service provider if you feel this is incorrect.

Your cache administrator is admin@mail.99ee.net.