I can't Connect to the Internet on my devices?

I can't connect to the internet.
I mean, I can on my computer, but other devices like my Wii, PS3, or iPhone can't.
I think it might have something to do with the wires since I moved them around recently.
I have a Linksys Wireless-D Broadband router and an Arris modem if it helps.

Is it only a problem with the Wi-Fi? Have you tried unplugging the router and modem and plugging them back in?

Possible Solution:

1. Reboot/Restart your router.
2. Check your DNS
- try use google public DNS:
8.8.8.8
8.8.4.4

3. Try use cable (direct connection).

Change your encryption type to mixed.

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