I don't think Kimmer has two routers, Jim - she said the old one was replaced with an Airport Extreme, although she also mentions an "Airport Express" - which is a different animal. Can you clarify that, Kimmer?
Combo router/modems are generally looked down upon as being the best of neither world, but many ISPs no longer provide modems without routers built in. For a long time, we had a combo unit provided by our ISP, turned off the router functions and used various iterations of the Airport Extreme. However, since moving to our new house, we've found the combo unit actually gives us better coverage than the Airport, so we're using that only to provide another network on the main floor (mostly for the Apple TV). I've considered acquiring a newer router, but so far haven't. If I was going to consider it, I'd probably go for the TP-Link Archer C-1900, as it gets very good reviews and isn't too expensive.
http://www.newegg.com/Product/Product.aspx...N82E16833704287 So, something you should ask your ISP - is your purchased modem up to scratch? It's quite possible that it's outdated too. Next question - what will they charge you to rent a modem/router, and what make and model do they provide? You can then look it up - see what other people think of it. If people think its ok as a modem, but stinks as a router (often the case) then you can explore turning off the router functions and getting your own router. If you want to get your own
new modem and separate router (if they recommend that/tell you your current modem is outdated) can you buy the modem and what models do they allow/support? That tends to be key. Some ISPs have a number they allow - others only allow one particular make/model so they aren't supporting multiple models.
Good information Paddy. I'm using an Airport Extreme purchased in November 2011 along with a Motorola SB6141 SURFboard modem that I purchased in February 2014 soon after Time Warner started charging monthly fees for their modems. Maybe it's time to update the technology around here.