Unable to update or download iOS apps from the Apple AppStore, use iCloud or device settings.

You need to post this here in the NightHawk forum for the R7800:

https://community.netgear.com/t5/Nighthawk-WiFi-Routers/bd-p/home-wifi-routers-nighthawk

You should directly connect the R7800 to the ISP modem, then out the Linksys switch AFTER the R7800 router. 

I would reset the R7800 and walk thru the setup wizard after powering OFF The iSP modem for 30 seconds then back on.

Good Luck. 

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Big_Russ wrote:

Guys, Please help, and you will need to spoon feed me the info, as I am not that computer savy. Just installed a brand new modem. A Model CM500V voice cable modem by Netgear. It is plugged in to a Linksys SE3016 switch. My Mac Pro is plugged in to that switch via eithernet. All works just fine. I connected a brand new Netgear Nighthawk X4S R7800 Router for WiFi. I can switch my Mac Pro to WiFi and all is fine, just a tad bit slower than on eithernet. I use the log in provided on the top of the new router. I log in with my IOS devices, all of them, and can't connect to the App store. Looking at the lights, the second light is on constant yellow/orange. I think this means there is no internet connection. It is plugged in directly to the Linksys switch. So it the Mac Pro which talks to the internet while plugged in to this switch. Being creative, I just plugged in the cable modem directly to the new Nighthawk X4S. Same problem, the second ligth is orange/yellow ish and no internet connection via wifi. So how do I get my brand new Netgear CM500V modem to talk to my brand new Nighthawk X4S? When connected to www.routerlogin.net I said automatic setup, and I get the correct error message that I am not connected to the internet. Any ideas to help?

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