I've researched this error on several sites and the common factor between all of them is that they were dropped at some point. One person said it started happening after upgrading to FW 2.6 but it could just be they don't want to admit they dropped it or that they dropped it a while back but didn't use the browser until after they upgraded to 2.6. Someone else has reported this same error occuring on FW1.5 so I doubt the problem is FW2.6. So, have you dropped your PSP recently?
Someone else mentioned that this error could possibly be related to low wifi signal. Maybe this is an error indicating that the antenna for the wifi isn't working properly. Most people also noted that the green wifi activity light isn't lighting up at all so it could also be that the wifi portion of the PSP is simply broken, could be from getting dropped, shocked, getting wet, who knows why but apparently this error occurs when the wifi device inside the psp isn't responding.
In any case your best-bet is to take it back to where you bought it and try to get a replacement or check sony customer support and see if they will RMA it and replace it for you. Sorry about your luck. I know I would hate for this to happen to my PSP >.<
On another note, here are things other people have tried, unsuccessfully:
-Reformat memory card.
-Reset defaults.
-Removed battery for 15 mins then powered back up.
-Deleted all infrastructure mode pre-sets and recreated one.
There was mention of some weird "power-off the unit then cycle the WLAN switch on and off and turn it back on" procedure but the reference they gave to it didn't seem very crediable.
Just as a thought, try going to settings, power save settings, WLAN power save and make sure it is set to off, then turn your psp off and back on. See if that does anything.
Good luck
Message Edited by zel813 on 03-16-200610:45 AM