I just ran into the same issue i experienced with the 7.5 beta:
https://community.sophos.com/products/unified-threat-management/astaroorg/f/98/t/68536
* installed ssi 7.9 ISO on our ASG220
* entered the details on first page (hostname, town, company etc)
* next i choose to restore backup file (from 7.504)
- it processes it, and the LAN ip changes from the default to the updated one from my settings - i now try and login (now at https://10.0.0.199:4444) - It prompts me that i need to set a superadmin password and confirm it.... - at this point, you cant get any further as once you submit you end up back being asked to set the password again...
Being this has bitten me twice now i guess there must be something in my configuration backup file which causes this [:S]
have reverted back to 7.504 and imported the same backup file and it worked just fine.
