Firewall Migration Tool not working

[abdulaziz.doro]

I want to migrate ASA 5515 to FTD2120, and I downloaded the Migration tools from Cisco version 7.7, but I have an issue as shown in the image below, after signing in using CCO, I  tried with different computer same issue 

[Nishad]

Hi @abdulaziz.doro, Are you using any proxy in your environment for internet connectivity, or are you in an air-gapped environment? If so, this SSO login might not work. You will need to raise a TAC case to obtain the offline version of the Firewall Migration Tool.