`wget`: Cookies doesn't authenticate

I got some cookies from my browser where I'm well authenticated into a website. I've tried to give them to wget and make it download some internal pages, but all it downloads is authentication page

wget --load-cookies $path/cookies.txt --show-progress --no-check-certificate -p -v -U '$userAgentString'  https://$url 

How to get the target page and not authentication page?