Hello - if you have other web services which are timing out as well, they are very likely dependent on a Microsoft security certificate as we are. Since you are not having problems with Constant Guard, and simply want it to work as it was - removing it is obviously not going to resolve your issue, and the Norton password protector is just that - a password manager. It does not use the secure browser to protect and encrypt your online transactions as the Constant Guard online account protection does.
So - the question becomes, "What is causing the Microsoft Security Certificate to time out?" The certificate is very much like a timed cookie, and if it cannot open in a period designated by the MS servers, the time out occurs and the application fails or fails to open. We usually see this if a firewall or anti-virus application is hamperning the launch, OR if the date/time of the computer is incorrect for the location you are in OR if the computer clock is out of synchronization with internet time. Any of these can affect the time to create or open the certificate; or make the cookie think it is expired, and that will cause the same effect.
First - make sure your clock date/time/timezone are correct by right clicking on the clock in the system tray. You can also synchronize the clock to the internet at the same location - select a clock source such as .gov which is an internet standard. You can also do some quick and easy housekeeping on the computer by going to this MS site and running the "fix-it" for some simple issues. http://support.microsoft.com/mats/system_maintenance_for_windows/en-us
Finally - make sure your virus definitions are up to date, for whichever anti-virus/firewall application you are using.
Also - have you made any changes to the operating system or browser which could affecting any of the web applications or services? Can you tie the issues you are having to any recent change made by you, or perhaps through a Microsoft update or any other update you have taken?
Also - if this is happening "once or twice a week," is it possible that your internet connection is getting slow - or is slower than normal at that period. A slow connection will cause the .dll (download link) to time out - and this does exactly the same thing - the certificate cannot be started - the application cannot start - and you are seeing the error. IF you can tie this to a service issue, then you need to contact Comcast Service at 1-800-COMCAST to report a service issue with your broadband service.
