Hello @Ian 
I’ve developed a new version of Philips Hue Scan (that scan from both https://discovery.meethue.com/ and locally) and allow users to fill in the bridge IP address if not found through discovery.
If you want to test it, please use this image
docker pull cicoub13/gladys:philips-hue-improve-scan
And I give you this tutorial about how to launch a test image (
Be sure to read it before to avoid production database issues): Tutorial: Launch a test Docker image