The "Enable testing mode" checkbox seems to block the setup keys from saving.
When I unchecked the box I was able to save the keys.
If this is by design maybe provide a warning?

In my error log I have

Error 900: Network error. (50.23.148.2)

Error 900: Network error. (50.23.148.2)
Request: POST http://dev.mollom.com/v1/site

url = 'http://yatta.yatta'
email = 'yatta@yatta.com'

Request headers:

Accept = 'application/xml, application/json;q=0.8, */*;q=0.5'
Content-Type = 'application/x-www-form-urlencoded'

Response: -110 Connection timed out

Comments

Same error with mollom-7.x-2.6.

Status:Active» Postponed (maintainer needs more info)

When testing mode is enabled, then the module automatically creates API keys for Mollom's testing API (which is different from the production service). Due to that, the API key input fields are not editable when testing mode is enabled.

To set or change your real API keys, you need to disable the testing mode first.

--
The OP additionally contains an communication error message for a request against the testing API - do you still experience this issue today or was that a temporary fluke?

Status:Postponed (maintainer needs more info)» Closed (cannot reproduce)

It's been some time since the last update here. I'm going to close this ticket for now, as I hope that the issue is resolved.

Please feel free to reply if I'm mistaken or if you have additional questions.

Thanks for your feedback!