Website function no longer working after recent reinstall w/ upgrade

My hard drive crashed recently and I needed to reinstall my Internet Security  software suite.  The reinstall used the current version as of December 2014  21.......   Since then, I am unable to access an important website I used frequently.  It is a government site that involves password access.  Another computer in the house that has a slightly older version of the same software has no problems fully using the website, nor does my cell phone.  All devices are using Chrome browser.

There must be some settings or new feature that is blocking my access.  Can anyone help with this issue?