IE suddenly can not display page after select in dropdownlist when debugging in Visual studio
i select first dropdownlist show a gridview normally,

when make a break point in second dropdownlist selectedindexchanged function to see why it do not display page

it do not go to break point, then show the following page.

res://ieframe.dll/dnserror.htm#http://localhost:3276/Default.aspx

i tried devenv /resetsettings that also can not solve this issue
IE suddenly can not display page after select in dropdownlist when debugging in Visual studio
===

i select first dropdownlist show a gridview normally,

when make a break point in second dropdownlist selectedindexchanged function to see why it do not display page

it do not go to break point, then show the following page.

res://ieframe.dll/dnserror.htm#http://localhost:3276/Default.aspx

i tried devenv /resetsettings that also can not solve this issue