I use WhatsApp Web on Windows 10 & Google Chrome to connect to an iPhone.
Today, after re-installing Windows, I started to have session issues. On a regular basis (less than 30 minutes or so) I get logged out. Both screenshots are attached. The browser shows a QR code for me to scan and the iPhone still displays the session.
I deleted numerous left-over sessions, otherwise there would be a list on the second screenshots.
This setup worked before Windows re-installation.
Q: What could be the cause of expiring / disconnecting sessions?
[08.08.2017] Apparently, this is not evident using Firefox. Google Chrome still has session issues.
WhatsApp Web on Google Chrome & Windows 10, (QR Code disguised on screenshot)
WhatsApp on iPhone