look for octoprint as a octoprint service, not http.
look for octoprint as a octoprint service, not http.

Reference:
https://github.com/foosel/OctoPrint/wiki/Plugin:-Discovery#zeroconf-service-_octoprint_tcp

Fixes #4375

lordofhyphens/Slic3r,pieis2pi/Slic3r,lordofhyphens/Slic3r,curieos/Slic3r,curieos/Slic3r,curieos/Slic3r,lordofhyphens/Slic3r,lordofhyphens/Slic3r,alexrj/Slic3r,lordofhyphens/Slic3r,pieis2pi/Slic3r,curieos/Slic3r,pieis2pi/Slic3r,alexrj/Slic3r,pieis2pi/Slic3r,alexrj/Slic3r,curieos/Slic3r,pieis2pi/Slic3r,pieis2pi/Slic3r,lordofhyphens/Slic3r,alexrj/Slic3r,alexrj/Slic3r,curieos/Slic3r,alexrj/Slic3r