Exactly idem here on XP, with the last NewMoon 28 and Basilisk.
But connection to Y! is OK via myPal on XP (or on Galaxy smartphone).
No problem with Gmail.
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11/13/2025
Problem solved today, in NewMoon first, then Serpent.
- Yahoo Connection Help page -> "Yahoo account locked" page
- SMS sent to smartphone = 6-digit code
- "Create new password"... click on "Later" button
The connection was reestablished quickly (without changing the password).