Check the wired link speed on the TV or computer. If it's less than 100Mbps, change the Ethernet cable. Login the admin interface of your router, check if there is hardware NAT, disable it if there...

Set the C20 as access point. https://www.tp-link.com/en/download/Archer-C20.html

are you able to save that entry when you open port 80 for the local server? did you reboot the router? what is the current firmware? i think you can report to tp-link support maybe there is issue in...

you can check with your IPTV provider, if they had recently change any iptv settings in their end. can't see anything wrong here in the settings.

see this. http://what-is-what.com/what_is/gpl.html

call tp-link support and ask for replacement, i think this unit maybe faulty. dr.m_gaber wrote Unfortunately the problem is still present sfter disabling bitswap