website and wordpress back end does not respond yet other sites do

I am using the Weaver Xtreme theme and I am running into a situation where my website and the WordPress backend system isn’t responding. When this happens I am able to access other websites without issue.

Also, when this happens, other people (different location and computer) can access the site. It may have something to do with my IP address, but that is a pure guess.

During this time I dump the cache and cookies and reset the modem and router. It does not solve the problem.

After a few minutes everything returns to normal.

Since this seems to only effect WordPress from my location and not the entire internet I believe this is a WordPress or theme setting issue.

Could you please share your thoughts and suggestions?