Getting Google Captcha repeatedly

For the last few days, when I log into HUKD from my laptop, I am repeatedly facing the Captcha screen any time I want to post something. It is the same laptop, same broadband provider, same house, nothing has changed (cookies do get purged when I close the browser). This is now getting quite annoying, not sure what is going on. I don't have this problem on my phone when using the app.