You may try to degrade the previous firmware and check if it works OK. Report the problem here directly. http://ticket.tp-link.com/index.php?/Tickets/Submit

Does it help if you reset it? How about status of WLAN light on device itself? Can you log in its web interface? Try to change a channel. By the way, there is no failure during upgrade?

What's the model number? 5.104.175.153 and 8.8.8.8 are obtained automatically or you changed them manually?

V1 has no IPTV option. What kinds of configuration do you need to do on the router to make IPTV work? Confirm it with IPTV provider, and then we can check if it is possible to be done on your current...

They can work together. The idea is to use just one transmitter (tl-pa8010) with 2 receivers: tl-pa8010 and WPA4220 You are trying to buy PA8010KIT or single PA8010? If you connect them in this way,...

I'm afraid not. Only IPSec VPN can be configured. PPTP, L2TP and IPSec Pass-through are supported but no extra configuration needed. http://www.tp-link.com/en/faq-558.html