Linksys Wireless-n E1200 New Router Setup Failure

I have been attempting to set up a linksys wireless-n e1200 router on my hp p6-2007c (Windows 7 SP1, 64-bit) desktop pc for the last day and have exhausted everything i can think of. The previous router was a linksys WRT54G and it worked fine. However, upon setting up this new router i get a "no internet access" message accompanied by the little yellow triangle and the ability to still connect to my router via its ip address to alter its configuration. The connection status for the network and the internet is identical for all the laptops in my house. I originally attempted setting up the router using Cisco's setup program. At its conclusion, the setup program informs me that i am connected to the router, but my internet connection has been lost (even though it was never there) I have tried starting over from scratch by resetting the router back to its default settings and using a variety of different channels (Auto, 1, 6, and 11), frequencies, etc. I have uninstalled norton antivirus, disarmed the windows security programs, made sure of TCP/IP settings, rolled back, uninstalled, and finally updated firmware, uninstalled/reinstalled driver for wireless card, disabled/enabled the card itself, deleted all other previous network profiles still present in the "Manage Wireless Networks" screen, and probably some other suggestions i came across in this forum. They all failed with the same results, i.e. the ability to connect to the network locally and having no internet access.