The activation link in the email invitations to join Share911 expire after 3 days. There are two solutions to help:
1. Request that your Share911 account manager resend you another email invitation to join Share911.
2. Most Share911 accounts are set up to allow users to self-register using their work email by going to this webpage: https://share911.com/register
3. Share911 works with any browser. However, we don't work well with older versions of Internet Explorer. If you're using IE and are experiences issues, please update IE, or use Chrome, Safari or Firefox.