Your AOL webmail is available via www.aol.co.uk or http://webmail.aol.com (Have to sign in)if you are connecting up with a Router and can be accessed from any PC And the Reason you are being blocked is the server of your Relatives or a Firewall is Not allowing You through because as you observed the ISP address is altering everytime.Ask them to see if AOL is Moved to the Allow list on the Firewall and/or Trusted sites list in Internet Explorer as a first step then send a test email(Can you tell me did this work?Please reply) through, and see what happens? This is a security or Email forum issue. Worth a repost in either of those sections and Somebody can get your computer to talk with your relatives computer or their ISPs server if the Things I've suggested don't work