Xbox says I can connect to Xbox Live, but won't let me sign in to Xbox Live.

Hey there, does this issue persist if you connect directly to your modem?

As far as I know, all I've ever used for the internet connection in my house IS my router. We had Comcast install our internet devices, so neither me or my family really knows much about this stuff. I don't even know if it's possible to have a set-up without a modem, unless I myself am confusing my modem for my router...I don't know. All I know is that my Netgear device is connected to my Xbox 360 directly with an ethernet cable, and connected into the wall. I apologize for my lack of expertise with Hardware and Networking, it's not really my thing =(

Wouldn't using a wireless connection to the internet and not having to worry about a wired connection fix a problem if it had to do with my physical connection? I've switched to a wireless setup multiple times, tested the connection, and it hasn't failed the test. It just won't sign in.

I just don't understand this at all. It's worked for a couple years now just fine, for both my old Xbox 360 Elite and Xbox 360 Slim 250GB.

Would re-activating my gold membership help at all? I just got a brand new 3-month pre-paid card. If not, any ideas as to why it wouldn't work despite being able to make the connection, connected to the router/modem/whatever or not?

Sorry for all of the trouble, but this is very frustrating.

I fixed it, I think. I used my prepaid card and was able to sign in afterwards. I don't understand why I couldn't use Silver, but it works now, at least. On to Halo: Reach matchmaking I go!