Please try turning off VPN, antivirus softwares and firewall to see if it helps.
You can also try using the Mac client fix version to troubleshoot.
If the connection issue still remains, please share with us(firstname.lastname@example.org) your log files. Log files will help us further look into the problem.
One log folder is located in /Users/[Current User]/Library/Application Support/SKYBOX/logs.
The other log folder is located in Quest 2\Android\data\xyz.skybox.player.ovr\files\Log. You need to connect your Quest 2 to your Mac through a cable, then the "Quest 2" folder will appear on your Mac. Please zip the log folders when you send them to us. 🙂
What's more, are you using the latest Quest version 1.1.0(553)? You can click Global Settings and turn on Show FPS to check the version number.
Feel free to contact us if you have any problems. Have a nice day!