I'm also getting "adding movie failed..check server availability." Yet it gets added to CP fine. If it's available SABNZB will even start downloading it.
Code:
GET /api/<removed>/movie.add/?identifier=tt1840309&profile_id=3 HTTP/1.1
Host: 10.10.10.5:5050
Connection: Keep-Alive
User-Agent: Apache-HttpClient/UNAVAILABLE (java 1.4)
HTTP/1.1 200 OK
Content-Length: 709
Vary: Accept-Encoding
Server: TornadoServer/3.2.dev2
Etag: "<removed>"
Date: Thu, 02 Jan 2014 13:58:33 GMT
Content-Type: application/json; charset=UTF-8
{"movie": {"profile": {"core": true, "hide": false, "order": 0, "types": [{"finish": true, "quality_id": 3, "order": 0, "wait_for": 0, "quality": {"size_min": 3000, "identifier": "720p", "size_max": 10000, "order": 2, "label": "720p"}, "id": 3}], "label": "720p"}, "library_id": 207, "releases": [], "status_id": 8, "profile_id": 3, "library": {"info": {}, "plot": "None", "status_id": 11, "tagline": "None", "titles": [{"default": false, "simple_title": "none", "id": 3210, "title": "None"}], "year": null, "identifier": "tt1840309", "files": []}, "status": {"identifier": "active", "label": "Active"}, "category": null, "last_edit": 1388671113, "category_id": null, "id": 207, "files": []}, "success": true}
Wireshark looks fine to me, and I don't see any problems in logs of CP or SAB either. Could the problem be I don't have SAB configured with Couch Potato?