Tivo won't connect to router

I have a Tivo Premiere XL4 that connects (connected) wireless to my Wifi network via Tivo G adapter. (I think it's a G wireless adapter, but I can't remember and I can't find anything on it that tells me.) My router is an Apple Time Capsule. Everything was working perfectly last night. I even forced a connection to Tivo service. When I got home from work today, it wouldn't connect to the Internet.



When I check the network status, I see that it's connected to my wireless network and has 90%+ signal strength. But it will not make a network connection. When I try and redo the setup it says it can't find the router and I get the N07 error.



I have done almost all of the troubleshooting tips from the Tivo website. I've power cycled my Tivo and router. All of my other devices connect to my Wifi network fine. I've also tried plugging in via Ethernet cable (over power line) and it still would not connect to my router.



I know my Time Capsule is very old. Do I need to replace it as my router? But none of my other devices have difficulty connecting.



I appreciate any insight on what I should try next. Also, I just want to say that my tech savvy is very basic, which is why I like the plug and play of Apple products.