Hello,
Thank you for contacting Rank Math, and sorry for any inconvenience caused.
Could you please add the following filter on your website and then reconnect to your account one more time?
https://rankmath.com/kb/filters-hooks-api-developer/#disable-domain-checking
After that, the plugin should be able to stay connected without any issues.
Here is a guide you can follow to add the filter:
https://rankmath.com/kb/wordpress-hooks-actions-filters/
Don’t hesitate to get in touch if you have any other questions.
I tried your methods which are mention above but it can’t help.
Same problem is coming my traffic is also comes to zero when i shift yoast seo to Rank Math
Hello,
Please head over to your WordPress admin area > Permalinks, and hit the “Save Changes” button (without making any changes), then clear your website and browser’s cache and see if that helps. Please do not remove the filter recommended by my colleague.
In case the issue persists, we might need to take a closer look at the settings. Please edit the first post on this ticket and include your WordPress & FTP logins in the designated Sensitive Data section.
Please do take a complete backup of your website before sharing the information with us.

It is completely secure and only our support staff has access to that section. If you want, you can use the below plugin to generate a temporary login URL to your website and share that with us instead:
https://wordpress.org/plugins/temporary-login-without-password/
You can use the above plugin in conjunction with the WP Security Audit Log to monitor what changes our staff might make on your website (if any):
https://wordpress.org/plugins/wp-security-audit-log/
We really look forward to helping you.
Hello,
Since we did not hear back from you for 15 days, we are assuming that you found the solution. We are closing this support ticket.
If you still need assistance or any other help, please feel free to open a new support ticket, and we will be more than happy to assist.
Thank you.