Hello, I apologize for the delay in response, but so far I have not finished testing.
After the last message, I contacted technical support from D-Link. His answer was:
-Do not install any firmware that was not that they should tell me.
-Load once the same firmware that was on the access point from ftp://ftp.dlink.es/DAP/DAP-1360/Firmware/B1/2.11b23/
-Make several tests, that I done before, with channels and different configurations.
-Put the access point mode "Only wireless G", ignoring my complaint that my firmware did not allow that.
-Tell me that the access point could not support more than 10-12 clients connected simultaneously, although this appeared nowhere in the technical specifications.
-Tell me that he use MAC filtering by ignoring my firmware only supported 8 clients list filtered by MAC.
-Finally, ignore all my complaints and closed my ticket.
All that without reaching any solution.
Fortunately, I found this page: http://tsd.dlink.com.tw, with a good collection of firmwares and prepared to try them all.
-The DAP-1360 firmware v2.11 FW B1 and B1 DAP-1360 FW v2.12 and its variants had the same problem: the clients are disconnected from the access point.
-The firmware: DAP-1360 B1 FW v2.00b17: I have not tested.
-The firmware DAP-1360 Firmware v2.10 FW B1 (for WW): with it, I could put the access point mode "Only G" and MAC filtering is unlimited. With "G Only" setting it, I can work with 20 clients connected simultaneously using WPA / TKIP in the last two days.
Problems encountered:
-The firmware load fails often. The most stable form is loading it from a Windows XP with Internet Explorer 7 connected to the same switch that the access point.
-Firmware 2.12: leaves the default IP in the range 10.0.0.X/255.0.0.0, not 192.168.0.50
-Sometimes there is no choice but to put the access point into recovery mode to load the firmware: unplug the power, press reset button for 3-5 seconds, plug the power and wait 10 seconds more with the reset button pressed. Then, load the firmware from the 192.168.0.50 page
Conclusion: it works, but only as 802.11-G only. Not really a wifi-N if you plan to connect more than 2-3 devices.
Thanks for your help and excuse my terrible English.