I was not able to login to Home Assistant till I change he Home Assistant config to place the Websocket reverse proxy info BEFORE the web UI info. In the other order it loads, but never lets me log in. If I reverse them, then I login just fine.
Without the 'disableeuse=On' configured, Apache will try to reuse tcp ports even when these ports were closed by home assistant (tcp FIN was sent). When Apache tries to use such a port, no answer will come from home assistant, causing Apache to respond with a HTTP 502 error.
With this option turned on, the situation will not occur (since ports will not be reused).
