3G DNS issue with Modem Manager / Network Manager

["MU Yongjian" <muyj ustc edu>]

Hello all,

 

         When I use modem manager (Network manager) to connect 3G(WCDMA), it always get error DNS address. Modifying the DNS manually, it can access internet normally.

SPEEDUP SU9800 USB dongle, WCDMA SIM card.

         Then I change another SIM card(also WCDMA, the same carrier), it can get right DNS.

         Is there something wrong with modem manager or SIM card?

 

Best Regard,

James