Hi Eusebi,
The discovery log shows the following error:
Failure Message: F5Networks.ManagementPack.Discovery.DiscoveryException: Big 3d update from version 10.2.0.1789.0 to version 10.4.0.1.0.0 was not authorized
Which means you'll have to check/enable the checkbox for "authorizing the big3d update" in the F5 Device discovery wizard. The big3d is the actual monitoring agent on the F5 device, that the F5 Monitoring Service is connecting to for collecting statistics, device configuration/health notifications, etc. The F5 Management Pack always checks for an updated version of the big3d agent running on the F5 device and if the existing version of the big3d is lower than the big3d agent shipped with the F5 MP, an update is requested.
Julian