@TP-Link Oh I forgot to mention IP of PC connected to C6 is 192.168.8.66 - static IP as DHCP is not provided (VR2100 is DHCP and C6 does not connect there to provide VR2100 - PC connection)

@TP-Link thank you for your suggestion. Unfortunately it did not resolve the issue. ad1) WDS mode select box is no longer available on C6 (it is hidden and disabled input in html - no, adblock...

Hello I've two devices Archer VR2100 acting as router/modem, providing Internet access and DHCP, with static IP 192.168.8.1 Archer C6 acting as router, providing wifi and lan connection with DHCP...