Hello,
If my experience with DAP-1320 range extender can help other person, i will share my latest experience.
I bought a Dlink router DIR-615 few years ago and last week, I bought this range extender to increase the signal in the upper floor. First of all, I was not able to link both devices with the WPS function.
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So... I used the GUI of the DAP-1320 to create a link. It works ...... But !!
I started to get signal loss for unknown reason. So, back to work on what is going on. I have tried many procedures and modifications on both devices and.... still random signal drop
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*** The firmware on both devices were updated last week and those updates didn't repair the problem. ***
After all those bad experiences, I read many posts on differents forums and Amazon.com to realize the main problem was targeted to the 802.11 N protocol. So, I changed the protocol of the router to "ONLY 802.11 G" .
Since this simple manipulation, no more signal loss (dropout)
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Taking no chance, I have used 2 wifi tools analyser ( Inssider and wifi analyzer from Android) to observe the way the signal was broadcast and I have set(force) the router to channel 1 because the neighbors were all on channel 11.
Hope my post will help other
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Andre