I had that problem awhile ago. For me, the only fix was to reset all of my connections. Haven't had any problems since. Code: gconftool --recursive-unset /system/http_proxy gconftool --recursive-unsetdeletes /system/proxy gconftool --recursive-unset /system/osso WARNING. This deletes ALL known connections.
gconftool --recursive-unset /system/http_proxy gconftool --recursive-unsetdeletes /system/proxy gconftool --recursive-unset /system/osso
gconftool --recursive-unset /system/http_proxy gconftool --recursive-unset /system/proxy gconftool --recursive-unset /system/osso