Can't authenticate toner on Mac - "no internet connection"

[NiWi]

So, time to replace the first of four toner cartridges.

But I get a message that I should authenticate the new cartridge. But it fails, due to "no internet connection". This i strange, because I have a working internet connection on my Mac and the printer is connected to the same wifi as my Mac.
Any tips on how to either successfully authenticate or (as a last step) disable this message for ever (since I have three more colors to replace in the forthcoming future).

[Kumar0307]

@NiWi, Welcome to the HP Support Community! I’m here to help.

To check the authenticity of your cartridges, go to the HP anti-counterfeit webpage (in English).

Try a different web browser and check if that helps.

Update the printer firmware

Click here to download and install the latest printer firmware from your Mac.

Click here to know different methods of updating printer firmware.

For more info on this issue, refer to - 'Unable to Authenticate' Displays

Hope this helps! Let me know how it goes. 

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