Amazon Connect Instance Site is not accessible

I understand your frustration with not being able to access your Amazon Connect instance. There are several potential causes and troubleshooting steps you can take:

1. Domain Updates: If your Amazon Connect instance was created before March 31, 2021, it might be using an old domain format. Amazon Connect has been updating domains from the old format (your-instance-alias.awsapps.com/connect/) to the new format (your-instance-alias.my.connect.aws/). Check if you're using the correct, updated URL.

2. Network Configuration:

• Ensure your network's allowlist includes the required domains:

• your-instance-alias.my.connect.aws
• *.static.connect.aws

• If you're using a corporate network, check if your organization's firewall is blocking access.

3. Browser Issues:

• Clear your browser cache and cookies
• Try accessing in incognito/private browsing mode
• Ensure your browser supports TLS 1.2 or higher (Amazon Connect no longer supports TLS 1.1 and below)

4. Connectivity Troubleshooting:

• Check if your internet connection is working properly
• Try using a DNS lookup tool to verify the domain resolves correctly
• Temporarily disable any proxy servers or VPNs
• Check if any security software might be blocking the connection

While AWS does have high uptime guarantees, issues can sometimes occur with specific instances or with the network path between your location and AWS services. Continue following up on your support case, as they should be able to provide specific information about your instance's status.
Sources
Update your Amazon Connect domain - Amazon Connect
Website not opening | AWS re:Post