@Vacmik Use the Windows Local Security Policy editor for this purpose - here's how.

@achronox First make sure that you're withe the latest FW release for your C50 (there's a newer version on the support portal). DHCP Clients List shows only devices with DHCP obtained IP addresses:...

@MicahZoltu Try with upgrading the router's FW to the latest release. Look for the correct HW version when upgrading the FW - check that on the bottom sticker.

@Paul4256 Any luck with your W9970 as an AP efforts ? To isolate an infrastructure issue you could use an ethernet cable to link the W9970 to your main router directly and test its wired/wireless...

@d553 Keep the router's IP address and its DHCP server pool settings as I posted and everything would be fine. This router can serve normally 25-30 devices so your previous DHCP pool was...

@d553 Yep, set both DNS servers to 192.168.0.100 and test. Is your device Archer C60 ? Your DHCP server pool looks unrealisticly large. You LAN settings should be like: IP address...