QR Scan in WhatsApp doesn't work (QR loads but phone scan never ends) Not the same as Why I can&#39;t scan the WhatsApp QR? because the problem there was the "OK Got It" was not visible due to the screen being too small, but that's not the problem here

I have the latest version of WhatsApp

I restarted the phone

I have the WhatsApp Web option

The QR code loads perfectly in my chrome browser

I have the "OK Got It" option

It starts scanning the code....
.....and keeps scanning and scanning and scanning.....

I waited over 15 minutes and nothing happened! It just keeps scanning the code, no matter how many times I reload it, and nothing happens :(

I tested my internet and wifi connections, so I know it's not that.

Anyone else have this problem? Or know how to fix this?

I have a galaxy s3
Mine wouldn't scan when phone was on wifi; turned off wifi and it worked perfectly.