The thread is pretty old but the problem persists. I'm new gopro camera user, so I obviously downloaded latest version of Quik. I experienced the same issue - login failed. It is possible there are several scenarios to reproduce the problem, for me the problem was proxy setting. To reproduce the scenario, simply connect your computer with installed Quik to the network behind proxy. Set correct proxy in your browser settings and you can browse internet. But you cannot login to your account using Quik app. Solution: add manual proxy setting to quik app or read system setting. Do not assume that there is no proxy. Workaround: connect your computer to the network without proxy - for laptop it's easy, just move to the area with different wifi network. For my desktop computer - I created usb hotspot on my smartphone and I connected the phone to the computer via usb cable. I disabled the network connection with proxy and I used the newly created network connection. I logged successfully this time to the gopro account. The connection/logon is required on first use only, so you can switch to your original network connection after successful login. Downloading the latest version of the software will not work until manual proxy setting is supported in Quik
