Yes, UOA will disable after 10 unsuccessful tries to connect its own update server.
I remember tugsoft's server went down for a couple of days 2-3 years ago and lots of folk's UOA got disabled.
Workaround is to backup the registry key for UOA before you hit your last attempt and restore that reg file if you can't update repeatedly and get reduced to zero.
Then hope the problem is resolved soon (dns, isp, severed undersea cable problems etc, or even if tugsoft is down etc).