Outlook 365 can't tell time

I have used Outlook to download my email for many years.

Outlook 365 is not checking/downloading my email on the 10-min. schedule have used for years.

This is a home computer that is on 24/7. I (should) receive email on a pretty regular basis during a normal day. Email arrives on a random basis overnight. In the morning, when I sit down to work. email will suddenly come in. During the day, email will again come in on a random basis. Often, if I am expecting something, it only comes in if I check, and then, sometimes I get things that are dated several hours previously. Last week, I suddenly received email on one of the 3 accounts that ranged from several minutes to 3 weeks old.

All 3 gmail accounts are set up the same (in fact have not been changed in years).

I currently have Outlook 365 (Vers. 2402 Build 16.0.17328020124 - 32 bit) and Windows 10 (22H2 - OS Build 19045.4170). Both of which were added last year and are probably the root cause of my problem.

I use FiOS as a carrier. The hardware was built by my son (NUC) just s few years ago. I also use Firefox.

I tried changing to a 15-min. schedule with change. I tried creating another (4th) account as a "loner". No change.

Why can't this version of Outlook keep the time?

Assuming that "...When you go to the weail portal are all pf the emails sitting there?" means "...When you go to the web portal are all missing the emails sitting there?

Answer: Yes. All the missing emails are at .gmail. Checking online will trigger the Outlook download.

Note: Your post is dated as "2 days ago". Outlook did not download the post until I read another email in another account this morning.