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Hello,Try this:Advanced Firewall SettingsUncheck SIPGood luck
Uncheck SIP
Fixed my issue. I turned off (unchecked) IPV6 in my system network settings on my desktop PC running Windows 7 64bit OS and everything works great now. Seems as though having IPV6 activated interferes with the router and causes intermittent dropouts. I've got ver. 1.34 firmware on the router. My Macbook and my iPhone now work fine without dropping wireless signal. Everything is solid.