I am having a similar problem on MacOS 10.15.4. I can open and use my HA install with Firefox, but with Chrome on the same machine I get ERR_ADDRESS_UNREACHABLE (e.g for http://192.168.0.94:8123/config/dashboard or just http://192.168.0.94). I tried deleting all site data and I also tried and incognito window. Safe browsing is off. I also turned off the requirement for secure (https) access.