The white box is the fiber optic terminal. You won't be able to restart that one and it has no wifi capabilities. Follow the ethernet line running out of the white box to the router. The router / gateway is the one you'll need to troubleshoot on.
- Are any devices physically connected through ethernet? If yes, do they still work? If no, call Telus.
- Are any devices able to connect to the wireless? If no, you may need to reset the router. (not the white box)
- Were there any recent changes on the PC that may have affected it's ability to connect?
- Have you tried removing the wireless network from your PC settings, restarting, and trying to reconnect?
- What version of Windows are you running?
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