Fermín Galán added a comment - 16/Jul/15 4:21 PM User redirected to SOF (see email below). Closing. ------------------ Dear Pedro, Regarding your question: I had an instance of Orion Context Broker deployed on a Virtual Machine and it was working correctly. Now, it's not working properly anymore: I'm subcribing to context changes with the following message: { "entities": [ { "type": "Patient", "isPattern": "true", "id": ".*" } ], "reference": "http://192.168.204.101:8080/DrAra/DrAraRest", "duration": "P1M", "notifyConditions": [ { "type": "ONCHANGE", "condValues": [ "PainAfter", "Occurrence", "Exercise", "Score", "Timestamp", "PainBefore", "ExecutionTime", "Results" ] } ], "throttling": "PT1S" } I IMMEDIATELY receive a POST on my Rest Server with all the information regarding the entities I subscribed to (all). However, whenever any of the fields of these entities change (and they ACTUALLY change - I know because I queried the entities) I do not receive a notification on my server anymore. We provide support on Orion Context Broker through StackOverflow http://stackoverflow.com . This way, all the Q&A about the product become available in a public and searchable knowledge base like StackOverflow, which is quite popular among developers. In that sense, could you ask your question using that platform, please? Use the “fiware-orion” tag (this is important: using this tag in your question is the only way our support staff realizes a new question on Orion has been posted). Any further interaction will be carried out through answers and comments to your question. Please include the following information in your question: Orion version you are using, e.g. contextBroker --version If the problem start happening just after you update from a previous version (in that case, please tell the original version). Thanks! Best regards, ------ Fermín