Please edit your Original Post (“OP”) above, to include the Brave Browser version numbers.
Try . . .
A simple online test webpage to reach:
https://test.nextdns.io/
Test - compare results:
- Brave Browser New Window
- Brave Browser New Private Window
Test - new, additional Brave Browser Profile
For that test, be sure that only windows of the new Brave Browser Profile, are used. In other words, do not have windows open from 2 or more Brave Browser Profiles.
Extensions testing
- Disable extensions; then test for issue
- Enable extensions, one at a time, in order to individually test for issue
- Enable combinations of extensions, in order to see which combinations of extensions will work without encountering the issue
See if Brave Browser can more reliably connect to the Internet, by trying:
MacOS command line (Terminal.app window); enter:
open -a "Brave Browser.app" -n --args --disable-gpu --disable-extensions --enable-leak-detection --crash-on-failure --incognito
If running well, please take the time to back up your bookmarks and passwords.
Clear cookies, cache, history, etc.
In a Brave Browser New Window, go to:
brave://settings/clearBrowserData
Select the Advanced tab
Set Time range to “All time”
ENABLE everything except:
- Passwords and other sign-in data
(Myself, I would NOT make that exception)
(because I would have a backup prepared.)
(In other words, be prepared.)
Click on the “Clear data” button
Also, you may need to . . .
In a Brave Browser New Window, go to:
brave://net-internals/#dns
Click on Clear host cache
Next, same window, select “Sockets” on the left.
Click Close idle sockets
Click Flush socket pools
Quit everything and Restart your computer.
Tips regarding Brave Shields:
I have more success, with:
- Brave Shields UP
- Either Allow All Cookies or Block 3rd Party Cookies, but NOT Blocking All Cookies
- Allowing JavaScripts from specific sources, but NOT Allowing All JavaScripts
- Trackers & Ads treatment: Aggressive (at first), and then incrementally relaxing that setting
- Fingerprinting (aka footprinting) blocking: Strict (at first), and then incrementally relaxing that setting
I almost NEVER use:
- All of Brave Shields UP
- All of Brave Shields DOWN
Study:
Shields Basics
How do I configure global and site-specific Shields settings?
How do I use Shields while browsing?
Opening the Developer Tools window
- MacOS users, key combination: Command + Option + “I” (no quotes)
On the first occasion of using Developer Tools, the Developer Tools “window” is usually a part of (contained within) its associated Brave Browser window . . . but you can make the Developer Tools window, a standalone window (though keeping its association with the Brave Browser window). I recommend that you do so:
In the upper right-hand corner of the Developer Tools window, there is an “Organizer” 3-vertical-dots button - click on that. The result should be a pop-up:
Notice the tiny blue icon that is first (left to right) among 4. Click on that icon. The Developer Tools window will become a standalone window.
How to use Developer Tools:
- ‘https://www.lifewire.com/web-browser-developer-tools-3988965’
- ‘https://developer.chrome.com/docs/devtools/network/reference/’
- ‘https://docs.microsoft.com/en-us/microsoft-edge/devtools-guide-chromium/’
Developer Tools > Network:
By monitoring the Developer Tools window > Network tab, you can observe the “behind the scenes” networking activity between the Internet browser and the website.
Possibly:
In a Brave Browser New Window, go to:
brave://settings/shields
Disabled or set to “Standard” should allow HTTP . . . that might work.
Also:
Brave Browser has a Task Manager. You might monitor both it and the MacOS Activity Monitor, at the same time.