Apologies if this is old news but really struggled to get this working, finally did so thought I'd post my settings. Basically idea was to connect PSP1000 to a Belkin N+ router:
Router model F5D8635-4v1, firmware 1.00.23, it's the one with USB port on it
Channel 11, Wireless mode n&g&b, Bandwidth 20/40 Mhz, Broadcast SSID No,Protected Mode Off, WMM Enabled
Security WPA-PSK+WPA2-PSK Encryption TKIP+AES
Wi-Fi Protected Setup (WPS) Disabled - Important!!
Infrastructure mode, Manually entered SSID, WPA-PSK (TKIP), Address settings Easy
I think the bit that got it working was disabling WPS, had tried all combinations of everything else!
tell you how grateful i am to you for posting this fix. Had my psp for 7 months and never been able to get it to connect to my belkin n+. multiple phonecalls to belkin and sony have even changed my psp. YOU SIR ARE A STAR
You sir are a LEGEND. This problem has been bugging me for about 2 months. All working fine now. Stupid WPS!!!! Many Thanks