You'll have to take a few different steps to fully reset a Safari browser's settings on a Mac, but it could help resolve issues and speed up your Mac.

My guess would be a cookie problem, try going into Safari and nuking your Ars cookies from your work machine and then logging in again. Safari is sometimes a little flakey about overwriting cookies or ...

You can stop pop-ups on your iPhone with the device's built-in pop-up blocker, or you can download a third-party ad blocker from the App Store.