Gmail not working in Chrome on Sonoma 14.6.1

[Lordfader]

Hi guys

Does anyone on here know why Gmail just isn't working in Chrome on OSX Sonoma?

I'm using the latest version of Chrome & OSX Sonoma on a brand new Mac Studio M2 Ultra.

Half the time Gmail won't even load within chrome & when it does I can't even send an email, I just get this pop up



After a few goes at consistently pressing 'send' it finally sends a message but I have to reload the page every time or shut down chrome and open it again.
This has been happening since OSX Venture.

ITS UNBELIEVABLY FRUSTRATING and NOTHING seems to have been done about it in the last few Chrome or OSX Updates.

This issue doesn't happen in Safari or on my MBP which is running latest version of Mojave OSX so it has to be something to do with Chrome and OSX Venture onwards.

I've tried all the suggestions I've found on line (reinstalling Chrome, trying a new user account, clearing Cache files etc etc) and yet it still persists.

Does anyone have any suggestions before I revert back to just sending handwritten letters through the post.
thanks

Richey

 

[iremt]

I had the exact same issue on my MacBook Pro M1 with macOS Sonoma 14.5 and Chrome. Gmail and several other HTTPS sites were timing out in Chrome while Safari worked perfectly on the same WiFi.


What finally fixed it: upgrading macOS to a newer version (I went to macOS Sequoia/Tahoe). The root cause appears to be an incompatibility between newer Chrome versions (134+) and macOS Sonoma 14.x in how they handle QUIC/HTTP3 protocol connections. Terminal connections to mail.google.com worked fine, confirming it was Chrome-specific.


Things that did NOT work: reinstalling Chrome, flushing DNS, resetting Chrome flags, disabling Secure DNS, clearing certificates, creating a new Chrome profile.


TL;DR: Update your macOS — it's a Chrome + Sonoma 14.x compatibility issue.