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Has anyone using a Smarthub 2 and FTTC noticed their hub connecting via TR69 once per hour at 46 minutes past the hour rather than once per day? Changed about a week ago. A example from my routers log.

20:46:29, 04 May.
CWMP: HDM socket closed successfully.

20:46:29, 04 May.
CWMP: HTTP authentication success from pbthdm.x.x.x

20:46:29, 04 May.
CWMP: HDM socket opened successfully.

20:46:28, 04 May.
CWMP: HDM socket closed successfully.

20:46:27, 04 May.
CWMP: HTTP authentication success from pbthdm.x.x.x

20:46:27, 04 May.
CWMP: HDM socket opened successfully.

20:46:27, 04 May.
CWMP: session completed successfully

20:46:27, 04 May.
CWMP: HDM socket closed successfully.

20:46:27, 04 May.
CWMP: HTTP authentication success from pbthdm.x.x.x

20:46:27, 04 May.
CWMP: HDM socket opened successfully.

20:46:27, 04 May.
CWMP: HDM socket opened successfully.

20:46:26, 04 May.
CWMP: Server URL: https://pbthdm.x.x.x; Connecting as user: ACS username

20:46:26, 04 May.
CWMP: Session start now, server: https://pbthdm.x.x.x, Event code: 2 PERIODIC

20:46:26, 04 May.
CWMP: Initializing transaction for event code 2 PERIODIC

Any ideas? Sorry about the cheap film joke in the title.

Thanks

Anthony