Too much for the router?

[greganpace]

So this is a networking question and I'm not sure where else to post it. My luck with google and any other web forum has yet to yield a working solution. I always trust macrumors though. We are living in a basement apartment right now and sharing an internet connection with upstairs. The problem is that at least once a day or so the internet stops working. It still says I'm connected, but chrome says the DNS lookup failed and to check router, internet connection, standard network fixes, etc. I usually reset the router (unplug the power cord) and then it works fine. I am guessing it is because we have 4 computers, 2 iPhones, 1 iPod touch, and a PS3 all on the one network. All devices experience the failure. On another site, someone told me that if we have two routers, both going off the same connection, then it should ease the traffic and it shouldn't crash the router. We had a router from our last apartment so we just connected it to their router in one of the ethernet slots and we use ours now (1 computer, 3 idevice, and the PS3) and they are on the other router (3 computers) as directed by the other help site. I will refer to these as A (main router) and B (our router). Both are wireless. It seemed fine for three or four days, but then started happening again. If B stops working, I can move over to A and it works fine for couple hours or a day or two and then it stops working too. So then I go in and reset both of the routers and wait for a couple of days until I have to reset them again. We never had this problem in our other apartment with our 5 devices, and they have never had the problem before we moved in. I am skeptical about the 2 routers, but have no other leads to go on. Also, about 1 in 10 times I try to connect to the network it says there is another device using my IP. I haven't tracked to see how many devices are on at these times or anything. I read about playing with the router settings and assigning different frequencies and IPs and everything, but I don't really know how to do any of that. Could be two separate problems. Any help here would be appreciated.