Nvidia can take their force login to use "Experience" and shove it. Glad I don't spend much on video cards or gaming anymore. My solution....drum roll... uninstall.
https://forums.geforce.com/default/topic/963559/geforce-experience/can-t-log-in-it-ffs-/
https://forums.geforce.com/default/topic/969628/geforce-experience/can-t-log-in-at-all-wtf-/
https://forums.geforce.com/default/topic/963559/geforce-experience/can-t-log-in-it-ffs-/
https://forums.geforce.com/default/topic/969628/geforce-experience/can-t-log-in-at-all-wtf-/