1Password Doesn't Work With Synology NAS

Make sure you 'https' to port 5001 - that should both do the trick and keep your passwords even locally safe :) i.e. https://192.168.178.123:5001

+1. This stopped working for me about a month ago, on macOS Safari, after working fine for years (with both a Synology NAS and Synology router). I've no idea what changed. 

(I of course have the correct Synology 10.x.y.z addresses configured in the 1Password entries.)