Unable to connect when started with docker command

[TR-SLimey]

Trying to connect to localhost:8888 (on the host running the docker image) results in an empty reply from server error. Screenshot below:

[simonlerpard]

Does it work if you're using the assigned ip instead of localhost?

It might also be that you're missing the host variable. And no I can also see that it's also missing in the docker example config. So try this to run this:

docker run -d \
--cap-add NET_ADMIN \
--name wg-manager \
-p "51800-51900:51800-51900/udp" \
-p "8888:8888" \
-v wg-manager:/config \
-e HOST="0.0.0.0" \
-e PORT="8888" \
-e ADMIN_USERNAME="admin" \
-e ADMIN_PASSWORD="admin" \
perara/wg-manager

I'm currently running it using docker-compose using this config. Might be a good idea for you to try as well :)

wireguard:
  container_name: wg-manager
  image: perara/wg-manager
  restart: always
  cap_add:
    - NET_ADMIN
  ports:
     - 51800-51900:51800-51900/udp
     - 8888:8888
  volumes:
    - ./wg-manager:/config
  environment:
    HOST: 0.0.0.0
    PORT: 8888
    ADMIN_PASSWORD: admin
    ADMIN_USERNAME: admin
    WEB_CONCURRENCY: 1

[TR-SLimey]

It seems like using the version you gave in your comment fixed the problem. Thanks!