Hi Keith, sorry for the inconvenience caused.
(1) Can you tell me what's your camera model?
(2) You can check if the router port or firewall blocks the camera's internet connection. Find more information in this article, https://support.reolink.com/hc/en-us/articles/360039401593-Login-Failed-when-remotely-Accessing-Reolink-IP-Cameras.
(3) Upgrade your camera to the latest firmware. You can find the latest firmware on our download center.