Google Chrome net::ERR_TOO_MANY_RETRIES

Encountered a similar issue. Site threw cert warning and could not log in with Chrome but other browsers and incognito worked. Disabled password management plugin and was able to log in even though I was not storing any info for the site. Resolved immediately and was able to reenable password management plugin.

For me it was a lastpass problem.All you have to do is disable the lastpass extension, refresh the page that doesn't work, and enable the extension back.

If anyone is having this issue, I found out that at least with WordPress websites, LastPass can cause this issue on Chrome.

2021-04-12 09:52:41 Error   172.70.34.8     AH01618: user superRootAdmin not found: /               Apache error2021-04-12 09:52:41 Error   172.70.34.8     AH01618: user superRootAdmin not found: /               Apache error2021-04-12 09:52:41 Error   172.70.34.8     AH01618: user superRootAdmin not found: /               Apache error2021-04-12 09:52:41 Error   172.70.34.8     AH01618: user superRootAdmin not found: /               Apache error2021-04-12 09:52:41 Error   172.70.34.8     AH01618: user superRootAdmin not found: /               Apache error2021-04-12 09:52:41 Error   172.70.34.8     AH01618: user superRootAdmin not found: /               Apache error

The IP has a Cloudflare origin.

If the website is deployed by Plesk, this will trigger the Fail2Ban Plesk security feature. So, you'll be banned by Plesk along with the ERR_TOO_MANY_RETRIES if you disable Fail2Ban.

Remove the user/pass combination for that affected user account and you're golden.