WiFi connection problem (iPhone to TP-Link router) I'm having trouble connecting 2 iPhones 6 and one iPhone 5 to a TP-Link TD-W8901N wireless router.

When I click on the Join button on the iPhone it tries to join (upper side of pic) and then it stops (down). It's like a circle and repeats over and over....  

I am able to join via Wifi with my laptop.

I can connect to another router with my iPhone.....

I did restart router several times.

Router settings:


Channel: 1, 6, 11, auto (have been tried)
Wireless Mode: 802.11 b+g+n
Channel bandwidth: 20/40 MHz
Authentication Type: WPA-PSK/WPA2-PSK
Encryption: TKIP/AES
Transmit Power: High
Beacon Interval (ms): 100
RTS/CTS Threshold: 2347
Fragmentation Threshold (bytes): 2346
DTIM (ms):1
I had the exact same issue with a tplink access point and this made me crazy. Nothing worked for me, until i found the solution:

Disable WMM in the wireless advanced settings!!!