BT Home hub

Has anyone else had a Hhub that restarts itself at least once a day for no reason ?
I have been sent a replacement as it was thought the original one was faulty but it still disconnects at least once a day, the last 2 days it was exactly at 4.40 am and today it was at 2 pm .
BT community forum mods have been brilliant, even sent out a BT engineer who checked the line from the exchange and inside my home but couldn't find anything at fault ,he also replaced the ADSL faceplate with a newer version but the only difference it made was to reduce my up speed from 1029 to 917.
I've temporarily disconnected the dect phone I was using as a hub phone in case it was that but it hasn't made any difference to the stats so I doubt that it will solve the problem.
Any ideas please ?

djh22.

In reply to a post by djh22:

Has anyone else had a Hhub that restarts itself at least once a day for no reason ?
I have been sent a replacement as it was thought the original one was faulty but it still disconnects at least once a day, the last 2 days it was exactly at 4.40 am and today it was at 2 pm .

When you swiched over to the new HH did you also swap out the power supply? It may be the reason for the problem is a faulty power supply.

Thanks Jaggies but yea I did swap the power supply to the one that came with the hub.

In that case do you have any timer switches going on or off at those times?

No timers in the house except the heating and thats set for 7 am and 11pm.
It didn't disconnect this morning , fingers crossed it is the dect phone that I had connected to the hub.
This is what the Event log say around about the time of the disconnection. -
VOIP: [2.0A] [441271319453] [FXS DECT1 DECT2 DECT3 DECT4 DECT5] 200 OK - SIP message received
VOIP: [2.0A] [441271319453] [FXS DECT1 DECT2 DECT3 DECT4 DECT5] REGISTER - SIP message sent
VOIP: [2.0A] [441271319453] [FXS DECT1 DECT2 DECT3 DECT4 DECT5] 401 Unauthorized - SIP message received
VOIP: [2.0A] [441271319453] [FXS DECT1 DECT2 DECT3 DECT4 DECT5] REGISTER - SIP message sent
FIREWALL event (1 of 7): deleted rules
PPP link up (Internet) [86.162.43.217]
PPP CHAP Chap receive success : authentication ok
PPP CHAP Receive challenge (rhost = bras-red7.sl)
xDSL linestate up (ITU-T G.992.5; downstream: 7127 kbit/s, upstream: 954 kbit/s; output Power Down: 20.8 dBm, Up: 12.4 dBm; line Attenuation Down: 42.5 dB, Up: 23.7 dB; snr Margin Down: 5.0 dB, Up: 9.9 dB)
PPP link down (Internet) [86.162.43.217]
xDSL linestate down
FIREWALL event (1 of 29): created rules
xDSL linestate down
VOIP: [2.0A] [441271319453] [FXS DECT1 DECT2 DECT3 DECT4 DECT5] REGISTER - SIP message sent