Here, lol... http://ticket.tp-link.com/index.php?/Tickets/Submit

Enable WDS on web interface of WE841HP? http://www.tp-link.com/en/faq-227.html

You may try the method below to see if it helps. http://forum.tp-link.com/showthread.php?81586-Archer-C7-disabling-devices&p=163228&viewfull=1#post163228

"the cable is unplugged. before continuing, please make sure the cable of the WAN port is well connected to your device" Did you connect the ethernet cable to WAN port of C2? It should be wired. To...

Here is the forum for users. If you need assistance from TP-LINK, report the problem here.

It is a known issue by TP-LINK support team. Your guys can submit a ticket here directly. http://ticket.tp-link.com/index.php?/Tickets/Submit