Bizarre wireless N asymmetry

[doclabyrinth]

I recently got a DAP-1522 which I am using as an 5 Ghz 802.11n-only access point. I am connecting to it with my 2009 MacBook Pro. This should be faster than my 802.11b/g WLAN, right?

Copying a file TO my desktop is faster (4.1 MB/s vs. 2.3 MB/s)
Copying a file FROM my desktop is now unusably slow (97 KB/s vs. 1.7 MB/s)

97 KB/s!!!

It also takes more than 10 seconds to connect to the new WLAN.

What could be wrong? Any suggestions are appreciated!

(When I run the DAP-1522 as a G-only WLAN, I get 3.2 MB/s down.)

(Firmware 1.21, QoS is off, channel is automatic (though I tried changing it), tried Traffic Manager both on and off)

 

[thiggins]

Keep the MacBook at least 10 feet away from the DAP-1522. Closer and you could be overloading the receiver.

Set the DAP-1522 to use 20 MHz channel bandwidth, not 40.

Check / reseat / replace the cable connecting the DAP-1522 to your LAN.

 

[doclabyrinth]

Thanks for the suggestions.

It turned out that the problem was using the TKIP cipher with WPA1. I switched to AES and everything is great!