iControl to disable a virtual server

Actually I've made some progress... I didn't have the icrd running on my LTM. I can now run the first example you gave to describe my VS.

It's still failing with the below though:

curl -s -k -u admin:ourpassword -H "Content-Type: application/json" -X PUT -d '{"enabled":true}' https://10.241.100.11/mgmt/tm/ltm/virtual/~Common~Bens_Test_VIP

{"code":400,"message":"Status code:400, uri:http://localhost:8110/tm/ltm/virtual/~Common~Bens_Test_VIP, body: {\"errorResponse\":\"{\\\"error\\\":{\\\"code\\\":400,\\\"message\\\":\\\"Found unexpected data at property /ltm/virtual/~Common~Bens_Test_VIP/enabled. The data is true.\\\"}}\",\"errorStack\":[]}","originalRequestBody":"{\"errorResponse\":\"{\\\"error\\\":{\\\"code\\\":400,\\\"message\\\":\\\"Found unexpected data at property /ltm/virtual/~Common~Bens_Test_VIP/enabled. The data is true.\\\"}}\",\"errorStack\":[]}","restOperationId":2290260,"errorStack":["java.net.ProtocolException: Status code:400, uri:http://localhost:8110/tm/ltm/virtual/~Common~Bens_Test_VIP, body: {\"errorResponse\":\"{\\\"error\\\":{\\\"code\\\":400,\\\"message\\\":\\\"Found unexpected data at property /ltm/virtual/~Common~Bens_Test_VIP/enabled. The data is true.\\\"}}\",\"errorStack\":[]}","at com.f5.rest.common.RestRequestSender.finish(RestRequestSender.java:412)","at com.f5.rest.common.RestRequestSender.processNext(RestRequestSender.java:397)","at com.f5.rest.common.RestHelper$2.run(RestHelper.java:1478)","at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)","at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)","at java.lang.Thread.run(Unknown Source)\n"]}