The previously reported bug that caused a login loop for Google-hosted G-Suite accounts has been fixed, presumably on the server side.
The bug was first introduced in macOS 10.14.4 beta. Originally the bug affects any Google accounts with Two-Factor-Authentication (2FA) turned on; Gmail and G-Suite altogether. When macOS 10.14.4 was released, only G-Suite accounts with 2FA were affected. iOS 12.2 was also affected by this bug.
We checked on Saturday morning, March 30, 2019, and found out that the issue was fixed. Assuming that it was fixed on the server side by Google.
A lot of businesses and educational institutions are using G-Suite.
On Wednesday, March 25, 2015, several DNS servers were having trouble resolving domain names. I first noticed this when visiting Daring Fireball. I was not able to load the site on my iPhone, which is on T-Mobile network. By 4:00 p.m. Pacific Daylight Time, I was still unable to access Daring Fireball on my iPhone. I took the screenshot and tweeted:
If I had to guess, it might be DNS issue with T-Mobile. @gruber
Two hours later I noticed that I still couldn’t access Daring Fireball. This time I was using the office network; connected through AT&T DSL. We could only get AT&T in this particular area. Then I tweeted to John Gruber: