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Forum Discussion
WLAN access rejected: incorrect security
I am new to the community but a 20+ year IT professional. I recently bought a 7800 for my home to get better throughput for my gigabit internet, and after enjoying its performance, I turned on the W...
What modem/gateway is the router connected to?
You put 7800 but r7800 in signature. What router do you actually have because theres a r7800 and a C7800
It is an R7800 (sorry, I didn't realize there were other 7800's by this vendor). The full product number name, per the configuration portal, is
Nighthawk(R) X4S R7800.The modem is the on Century Link provided - ZYXEL C3000Z. I haven't much to set it up other than configure the LAN address (creating a separate network) and disabling Wifi. The current setup is:C3000Z acts as my internet gatewayFirst R7800 has it's internet port connected directly to the LAN port of hte C3000Z. This device acts as the "Master" in my LAN configurarion, hosting DHCP and the Wifi Configuration.I have a Cisco SG200-26 acting as the backbone for all ethernet ports in my home, and this device is connected to that main R7800.I have a secondary R7800 covering the other half of my home. It is configured to run in AP mode.WiFi settings - the only WiFi networks enabled in my home are the ones on the R7800. I have Smart Connect enabled for the primary netowrk. My IoT devices (solar panels, smart thermastats, security cameras, etc.) connected to the 2.4 GHz guest WiFi (because some of the devices only support 2.4). The 5GHz guest WiFi is disabled.So you have potential issues.
1. the C3000Z has its own integrated routing functions. Shutting off wifi doesn't put it in passthrough/modem only mode. It simply disables wifi. This can cause a double nat and issues. https://kb.netgear.com/30186/What-is-Double-NAT
2. The SG200-26 is a a smart switch. It has the potential for its own dhcp/nat setup as well. Which can cause isssues. Not sure how you have it setup or what functions you're using on it.
What I usually advise people when they're running setups like this is to start simple. The old KISS principle of networking.
Start with just the C3000Z and the R7800. Get them running properly together. Whether that is leaving the routing fuctions enabled on the C3000Z and putting the primary R7800 in access point mode or getting the c3000Z into a properly functioning passthrough mode (not always easy or possible with that router) and using the r7800 in router mode. Get that up and functioning properly first for a long enough time that it ensures your "wan access issue" is resolved. Then add either the switch or the other r7800 back in and run it to ensure it still functions properly.
Thanks. If we had double natting issues, I would think it would be an all or nothing setup - I have lots of devices (some wired, some wireless), and they all seem to work 99% of the time. It seems like there is just an issue communicating with this one device where it thinks the wireless authentication is incorrect, but only to move forward with the device after a couple of retries. My prior setup (Ruckus) didn't have this issue with all the other components in place.