@safara Yes, DHCP on C50 should be disabled - your main router should serve the C50's wireless clients DHCP requests. Make sure your connection is like: main router LAN port <=> C50 LAN port - that's...

@Ianeon If you post some screenshots of the port-forwarding on VR2100 like I did, it would be helpful for troubleshooting purposes. Make sure that VR2100 Internet IP address is the same as if you use...

@safara You'll introduce a double NAT in your network for sure. That's not necessary a bad thing, but it's better to avoid it. It could cause wireless clients connected to a different wireless...

@safara . When in Router mode C50 has a setting that allows that: When in AP mode this setting is not applicable: There are a some features that are not available when the device is in AP mode.

@tech7 Try using Access Control for that. If the device in question is C20 like as with the OP then here some details on how to configure.

@Ghazali Observe the Ethernet status of your AX10 ports here: If internet port is less than 1000 mbps then change this setting: If the LAN port wehre the PC is connected is less than 1000mbps then...