email alerts; not connecting all the time; What is the issue

 
I have used MT4 for years and took a few months off. Now my email alerts don't work all the time. It works (connects) sometimes but maybe 50% I get a connection error. What is the fix? My broker is no help. They say MT 4 never had a reliable email system because of SSL security. But I never had a problem before. Any ideas?
 
Have you changed ISP recently ? has your ISP changed their service recently ?