I have had the HG659 for a few months now and soon changed the DNS Servers to those listed for the Unotelly service.
I had to switch off the HG659 yesterday and today checked to see if the DNS IP addresses were still there.
They were not, which surprised me.
I added them.
However, I still wasn't 100% sure that they were being used, so I logged back into the HG659.

Regardless of whether I use the vodafone or the admin login, I am automatically logged of the HG659 within 3-5 seconds. I cannot even get to see what the DNS IP addresses are because of being logged off.

Any ideas why I am being automatically logged out.