We have several corporate web sites exposed on the internet. Some are older, build on IIS6 and IIS 7. We use Windows Authentication. We are hearing reports now that users with the latest IOS upgrade, Apple devices are not getting authenticated. If the authentication box pops up once, it pops a second time and then the it just sits and goes nowhere. Sometimes there is no box at all that pops up. I have scoured the internet and can't find any information. Does anyone have any ideas?