I splurged and bought an HP/3com 9552 802.11a/b/g/n access point. Like most enterprise-grade access points, it has very fine-grained configuration options.
I'm pretty sure I've configured it correctly for WPA/WPA2 with CCMP/TKIP encryption using a PSK. All my laptops and smartphones can connect effortlessly to the AP using 802.11g, n on 2.4 GHz, and n on 5 GHz. But my Roku XDS box cannot connect at all. The AP reports a "port security violation" when an attempt is made.
Since most other devices can connect without problem, I suspect the issue is with the Roku. But perhaps there is some setting on the AP that I can tweak to get it to work.
I have no other special configuration on the AP.
Can someone point me in the right direction to debug and correct the problem?