We are trying to use recaptcha on a contact form on one of our projects, however we are encountering this message on submit:

We're sorry, but your computer or network may be sending automated queries. To protect our users, we can't process your request right now.

We tried different networks, using vpn and not using vpn, different computers and differnt device types (eg. mobile phone etc.), we also tried different keys, as well as enterprise Keys and V3 keys all of those tests lead to the same Error message.

We´d appreciate any pointers on where we could debug furhter.