I have just installed a TP-Link AC1900 router on Vodafone Fibre X cable & checked all the WAN & LAN settings in the old HG659. Programmed up the AC1900 but no internet. Rang Vodafone & they told me the DNS settings are different for 3rd party routers & gave me the new settings. No go. Did a firmware upgrade & rebooted still no internet. Has anyone had a similar issue? Ive even had an IT friend remote in & checked settings on both routers & he is scratching his head too. Thanks in advance