I have a Windows 7 tablet and Macbook that have been connected wirelessly to a Netgear Wireless Cable Modem Gateway (CG814GCMR) for several months now with no issues. All of a sudden, they now cannot connect. My network does not show up as an option on either device. I can see all my neighbors network but not ours. The modem is working fine as I have a Dell laptop connected via wired connection as well as one Vonage phone line. It's just the wireless devices - iPhones and iPad also don't connect - that won't connect. Any help would be appreciated? Thank you.