Carte de sejour change of address

Hello, a couple of years back we moved from the Tarn to Gers.
My wife and I both have a permanent titre de sejour with cards that are valid to 2031.
I do know we need to update the address but if I go to here https://administration-etrangers-en-france.interieur.gouv.fr/particuliers/#/espace-personnel/connexion-inscription to register it says there is an error with the limited details I have entered.

Has anybody else used this page successfully?
A few months back I did raise an issue via their support area to which they did respond saying they didn’t know why and would get back to me….nobody has yet!

It isn’t a drama for me as I have an EU passport but Mrs B does use the carte when travelling on her UK passport.

Thanks

Seems to be a common problem! Are you using it in French? Using the auto-translate can cause problems. If not these are other suggestions

Are you having problems using the ANEF website to validate your visa, renew your residence permit, or some other function?

If you are having problems accessing the site or logging in, you can try:

  1. Make sure you are using the correct URL: https://administration-etrangers-en-france.interieur.gouv.fr/particuliers/#/

  2. Try a different browser or app.

  3. Try a different platform (smartphone, tablet, laptop, desktop).

  4. Erase all cookies and other website date in your browser.

  5. Restart your computer, phone or tablet and, if you have one, your router.

  6. If you are still unable to connect, try using a public computer, perhaps at your local médiathèque or mairie.

We updated ours recently after a change of address. We had similar problems that were eventually resolved using some, if not all of @JaneJones suggestions.