After applying Forefront UAG Service Pack 1 you probably unable to resolve any FQDN of IPv4 resources:
When we look at the DirectAccess associated service for DN64:
- Is stopped
- Is on Manual start
Hopefully solving this minor issue is easy:
- Change the Startup type to Automatic
- Start the Microsoft Forefront UAG DNS 64 Service
Normally all work again like before the SP1 for the access to IPv4 resources :).