[anter]

Yep, have had that issue for over a year now, I am completely unable to access my old gmail account despite having the password, recovery email and everything else.

Just says "you can’t sign in" and that's it: https://i.imgur.com/4YrElkJ.png

[empressplay]

Try using a VPN to log in from the location you last used the account

[shitloadofbooks]

Logging in from a known VPN IP will likely flag the activity as even MORE suspicious from Google's AI's POV.

[napsterbr]

Perhaps a better alternative than VPN (given it may look suspicious) would be to spin up an $cloud instance at whatever location and using a SOCKS proxy.

I used to do this back in the day to augment my Netflix selection.

[cheeze]

This is no better. All the big cloud providers have their CIDR ranges published

[empressplay]

That has not been my experience. I was able to recover two google accounts by using a VPN

[megous]

Not sure why you're downvoted. Setting up VPN on my home router and using that VPN on my next travel will be the first thing I'll do prepping for a vacation. Using VPN is a right solution.

All the geo-IP nonsense is absolutely crazy, including these random login blocks and "security" checks. You also get UI reset to languages you don't understand, because no, websites can't use the language you set in your browser, they have to use some geo-IP nonsense to select a language (especially funny with IPv6). And there's no persistent switch if you use private mode, because they don't respect UA settings.