same equipment with same issue.- http://forum.tp-link.com/showthread.php?1558-Samsung-SmartTV-refuses-to-accept-connection-in-client-mode&p=11418&viewfull=1#post11418 Hope this is sorted soon.

No, It didn't work.

Pinging / tracert to others IPs / domains from diagnostic tools doesn't work. I can do that fine from attached device.

I contacted support on this issue and received the following response... Thank you for the information , we have received several feedback and paid attention to these cases. We will conduct several...

yes, and the device connected to the repeater can access Internet. But the diagnostic tools doesn't work.

1. How many devices do you connect to your router. 2. Have you tried switching to a different channel ? select 1,6 or 11 3. Do you do p2p ( torrents ) ?