For those of your unfortunate enough to be upgrading to 10.6.1...

Discussion created by tpcolson Champion on Aug 4, 2018
Latest reply on Aug 14, 2018 by dhoyesriaustralia-com-au-esridist

...and you're on IIS and you have Windows Updates managed "for you". There was known quality issue with a Windows Update that blows up IIS: It can't restart. As upgrading ArcGIS Server requires a reinstall of the Web Adaptor, which requires an IIS restart, you're stuff out of luck if you did try it. Fortunately, there is a sort of fix. 


See these threads for lots of troubleshooting and speculation:


My 2 cents, it'd be great if the WA install had some pre-install testing that could be run, so if any IIS stability issues are detected, it would recommend not uninstalling your current WA. 6 hours of my life I'll never get back, thanks M$........