Why did the password change function in Bitrix stop working?

Question

1C-Bitrix

Hey! After the site was transferred to a combat domain, the password recovery function stopped working. Links come to the right to replace, but when you go and enter a new password, it swears that the verification code is no longer valid or another error that the session is out of date. Many clients are complaining. What might be the problem?

Answer 1

Is the correct domain set in the site settings.
In the settings of the main module, set a cookie prefix different from the standard one (cannot be used inside a dot - only symbols and underscores).
Move session storage to the database in proactive defense.
Look - maybe there are some special settings with time zones in the settings of the modules.
Check the php-time on the server and the database time (there are often surprises there)
...well, or debug if the error is hard to reproduce.