You are not stuck with the service, if you want to leave tell Orange why and ask for your MAC code, explain to them that you should not be expected to have to pay the same amount for a limited service that Orange were well aware of back when the deal was signed with BT http://www.thinkbroadband.com/news/4215-orange-hand-...
, if you want to you can complain to CISAS and perhaps OFCOM or better yet email the CEO of Orange Tom Alexander on firstname.lastname@example.org
and ask him to explain why you have been treated in this way. You will probably find that Orange are not very sympathetic as all they want is for us to shut up and hand over the cash.
I too use the DGN1000. I am on my second one as the first one was useless, the second one is only slightly better, there is a firmware update out there but the router does not find it, you have to find it by going to the netgear website, this marginally improved things but now Orange does not want to know, despite a senior member of staff called Rob promising me a new router to partly compensate me for my problems (this was after they tried to palm me off with an Orange Livebox that only has 1 Ethernet port that works properly and had had at least 5 previous owners (possibly 6), this was evident from the number of stickers on the back which were changing the MAC code and password of the router.
I wish you all the best and if you want any more help on this matter please feel free to contact me. I feel that Orange should be publicly apologising to customers, not hailing a downgrade to our service as an improvement.
Live fast, Die ...Auld!!