hello! i have had similar issues since i bought this router. i currently use a text/call service on my ipod and it couldnt connect to the call service. i found online that i needed to change my nat setting to "open". every forum i looked at told me to look under the wan settings but i could not find the nat settings anywhere in the routers menu. i tried upgrading the firmware and once i did that the option to change my nat settings was added to the "wan settings" section in the routers menu. i realize your question is 5 years old but it was one of the first things i read when i started researching my issue today so i figured id help people out who stumble across your question in the future.