I have recently purchased a tp-link td-8960n modem/router to replace my standard thomson telecom router.
The day I got it (roughly 1 month ago) I had real trouble setting it up to work with any wireless device.
I go through the setup entering the Telecom settings: VPI 0, VCI 100, PPPoA, VC/MUX, my telecom username with @xtra.co.nz on the end, and the correct password. I set the encryption to wpa2-psk, save and reboot the router. Once the router has rebooted I can access the internet no trouble through my wired windows 7 computer. But in the house there is an iphone, ipad 2, and windows xp laptop, of which none can connect to the wireless network. They can all see the network, enter the password, and I get 'unable to join the network' type messages.
I tried setting up the router using the supplied cd-rom and also by logging in to the router through the web browser and using the quick setup function. I tried both ways over and over, and eventually it began working, everything could connect to the wireless network. As far as I could tell I entered the same settings as the first 20 times. Nonetheless, it worked and has worked since until 3 days ago.
I was messing around and changed the dhcp lease time, and all of a sudden nothing can connect to the wireless network anymore. I changed it back, reboot, still won't connect. I have since restored to the factory defaults, re setup the router using the cd-rom and quick setup method about 30 times over. I have tried it with no encryption set, with wpa-psk, with wpa2-psk, no matter what I put, nothing can connect to the wireless network, yet my wired pc can still connect to the internet.
What else can I try? What else am I missing? It has been working so I know it works, it just won't now.