The ambit 256 is a modem only. Either way though, why are you using two routers and not just the Linksys directly attached to your modem? There is a 4 port switch on the back of your Linksys router to which you can connect wired devices and obviously you have got the wireless as well. I suggest you do this in the short term so we can ascertain whether it is your connection which is at fault or a connectivity issue with the router. When you start to daisy chain routers it can introduce problems and make it hard to work out what is happening with your traffic if you don't know what you are doing. Two points though:
1) 20mbit is an old tier which VM are dying to get rid of so I would strongly suggest you give them a ring and see what they say. They should upgrade you to 50mbits for free and send you a shub (which you will need for the speed) which you can use just as a modem if you want.
2) Taking the above into consideration, you won't get more than 25mbits wired or wireless through your current Linksys router and I would seriously suggest taking a look at something like
this. It is basically a beefier version of what you have already got and the wireless range and speed will be far superior to what you can currently achieve. Atm any laptops/tablets/phones you have bought in the last 4 or 5 years are being held back by the legacy wireless on your router.
As an fyi, I have just done a quick google and I think you have got yourself in a right pickle. If your "virgin router" looks anything like this, it isn't a router at all and is just a modem so if you are using another modem which is connected to your VM line and is working then you should only be using your Linksys router.
It is very rare I say this (it is only the second time ever) but I seriously think you should just forget using all 3 pieces of equipment you currently have, ring VM and ask for a superhub2 and they'll also bang you up to 50mbits. The reason I say this is because the modem part of the shub (without going into technical detail) will be far superior to what you currently have, provide you with a more reliable connection and you are more likely to be able to get the faster speeds. I do my Linksys routers but the shub2 is going to be better for you atm for both wired and wireless. If you do decide you want to go back to using your modem in the future you can do no problem. The shubs have a feature called modem mode and it makes the shub act only as a modem and you can connection any router your want to it and attach all your clients to your new router.
I really do think getting a shub is going to fix all your problems and although you are new to the forum, their are some very tech savvy experts on this forum who work in IT and you'll see them all agreeing with me when they join this thread. Trust us
