BrianW

Good suggestion. I will do that now. So many thanks for your help and support in solving this issue.

Having said that, I do wonder at WHY this site should activate a malware action.

Thank you so much for this solution to my problem. I'm back in business!! Cheers

Yes I do use Malwarebytes.

For years I have been using the web site hxxp://ivao.aero but, for some reason, I now receive an error message "Unable to Access Network" whenever I try. To complicate matters I CAN access variations of this site eg. forum.ivao.aero, events.ivao.aero etc. This happens no matter which browser I use. I have no problem accessing any other web site. I am assuming that somewhere in the firewall there is a setting that is blocking this web site. I am not technically minded and cannot see anywhere that even remotely says that the site is blocked. Could some kind person please instruct me on how I can solve this issue as it is quite annoying - not to mention frustrating.