There is a troubleshooting guide. Hope it helps...
http://www.tp-link.com/en/faq-904.html

Mavis wrote

There is a troubleshooting guide. Hope it helps...
http://www.tp-link.com/en/faq-904.html

Thanks for your answer, but I checked the guide and the router identifies my Chromecast, but it is not working. I found the solution in Chromecast forums in Google, which said that I had to install first a Router firmware ( http://www.tp-link.com/en/download/TL-WR941ND_V5.html#Firmware TL-WR941ND_V5_130709). With the other firmware, Chromecast doesn't connect.
Where can i report a firmware bug? I'm not the only one with the problem.
Thank you for your answer.

P.D.: Sorry for my english, es very poor.