I saw this problem addressed in 2022 and also in 2023 when I try to access my ATT email I get this message
I now find I am having an almost identical issue with YouTube. I am not allowed to complete sign in.
Something’s gone wrong
We may be having trouble with your connection. Connecting your device to Wi-Fi could help fix the issue or try again later.
If you were using an app, close this page. Otherwise, start over.
This happened before a few months ago. I do not recall the resolution, but what I have tried since yesterday is reset modem; erase browsing and cache; restart PC; I called ATT they only suggested I use a different browser, and since I can get mail on my phone and on Microsoft Edge I have to believe the problem lies with Brave. From the earlier postings I gather that Brave put a fix in that must not have carried forward to whatever update was done yesterday.
To repeat, early yesterday I accessed my ATT mail through Brave, but by midday started getting this error. I do not like having to use multiple browsers. Please provide a step by step solution or send through another update that addresses this issue.