Hello mirth27, see details : http://help.comodo.com/topic-72-1-451-4908-.html

thank you

Thanks for your suggestion Ideato but I'm not using a LAN connection ... mine's a wireless broadband with Windows 7. The screen dialog boxes are different to the ones in your suggestion and do not give me the same options as your link requires.

Any luck if you right click Wireless Network Connection > Properties > Networking > .... i think the other is the same....

thanks

Hi ideato. Tried that but no result at all on right click. It's a puzzle.

Hi ideato. Not sure if this is relevant but I uninstalled Comodo as a firewall a few months ago and it is only in the past couple of days that the Comodo Secure DNS has started to interrupt my firefox web browsing again.

Hello mirth27, seek if exist something from comodo in Start > Control Panel > Programs > Programs and Features, and remove it.

then you can seek in registry to delete everything related to comodo, Start > type regedit into the search area > hit enter > click Yes if prompted by UAC . You are now in registry editor, go to File > Export , to make a copy of your registry in a case something goes wrong, the go to Edit > Find > type comodo and you have all the keys the program created and not deleted by uninstalling the comodo firewall, now you have to delete every key related to comodo............not so easy i think !

http://windows.microsoft.com/en-us/windows/back-up-registry#1TC=windows-7

thanks again