Yup I did that too Tony. I called 1&1 and they were not much help. I called my ISP and asked them to help rule out the fact that they were the cause. I was stunned by the service and support I received. After spending several hours trying to look at every reason that my machine and or router was the blame, and finally being offered a free replacement router. Went to sleep for a couple of hours only to wake up to find I can now access the site. I have no idea what was wrong but everyone I asked was able to see the site, just not me. I even tried going to other sites located on the same server and they did not work either.
As always, thanks for you help Tony and others.