Home Hub 5 just disconnected itself and reboot twice

[#1]

I have similar issues with the HH4 on ADSL. Done it twice in 2 days at about 09:30.  Event log starts like this each time. (PPP LCP Send Termination Request [User request])  I have not had a connection last more than 9 days.   Got the HH4 for better Wifi but hardly ever connect to the faster speed.  May go back to the PN hub.

[#2]

I know this thread is quite old but this issue seems to have surfaced once again with the HH5
22:29:34, 11 Dec. ( 34.070000) The system is UP!

22:28:31, 11 Dec. (1212201.720000) The system is going DOWN for reboot.

22:28:31, 11 Dec. (1212201.720000) OpenRG is going for reboot by IPC command

22:28:26, 11 Dec. (1212196.720000) OpenRG will go down for reboot in 5 seconds
Exactly who or what is OpenRG and is there any method of preventing anyone else from remotely accessing my HH5 without my consent ? My HH5 is not locked to BT as it was purchased direct from the bt store last year.
Current firmware on my HH5
BT Home Hub 5 (Type A) | Software version 4.7.5.1.83.8.173.1.6 | Last updated 22/12/13

[#3]

Quote from: David

Graham21 Yes the home hubs get updates from BT despite being on PN. I had a HH2 and it always got the updates, and I have just swapped for HH5 which has updated. Re: blocking these updates - well I am not sure everyone would want this - so if you do find a way of doing it you need to ensure it can be selectively applied. Regards, David

Is this still the case as there seems to be a new firmware update being pushed out from yesterday - I wondered if anyone has had this update (https://community.bt.com/t5/BT-Infinity-Speed-Connection/BT-Home-Hub-5A-dropping-connection-updates/td-p/1449945 and http://bt.custhelp.com/app/answers/detail/a_id/52465/?s_cid=con_FURL_help/hub5update)
Rick