If you chose C80, keep in mind that current FW may not support Port Forwarding ranges like most of the other devices - it works only for opening individual ports.

I doubt that the main CPU is doing something wrong. What about 5GHz devices are they connecting normally. Any laptop desktop devices connected by wire to C20, do they behave normally ? Can you post...

@Niconico Try AP mode with these wireless security settings for both bands: Because your ISP device is in router mode then disable the C20 DHCP server and use the ISP device DHCP range for your local...

The Bandwidth Control feature has been phased out in favor of QoS. If you are after a gigabit router with Bandwidth Control feature, then you should look for Archer C5, if any stock left. This...

@Fiecas_eco If you have the WDS option in your router WebGUI you can use it to set up C50 as a wireless extender: Your router WebGUI may look different depending on the FW version. Here's how to...

@lmoml If your wireless connection is unstable do the upgrade via wired connection directly to the router. Try to upgrade your FW to the latest. I presume you have the US version. Download the file...