PS3 keeps saying my WPA key is wrong
I am having a bad time with my PS3 which I've had for about 2 years, PS3 slim with 120GB HDD. I've ran across a problem with my WiFi connecting to it. My PS3 doesn't accept my WPA2 key, I've changed it to a new key then my PS3 successfully connected to it. After 5 minutes it then drops connection and says my WPA key is wrong which it isn't.
So I changed my key again, it connected to the WiFi successfully, then an hour later it dropped connection to it then told me my WPA key is wrong when it isn't! My other devices connect to it just fine, like my Mac, iPhone, etc. But my PS3 doesn't connect to it properly. I get signal strength of 80-90%+
Is there any reason why it keeps doing this?
I am upstairs and the router is downstairs, I cannot use a Ethernet cable because it's far too long to connect to it.
A few thoughts:
1) ensure your router's DHCP server is configured to allow enough clients to support all your hardware. If you have 10 clients enabled for DHCP and 11 connections are attempted, it is plausible that one device is grabbing an address and then the ps3 is left waiting for an expired lease. This can happen more often with shorter lease times (check the lease time and compare to the timing of ps3's loss of address). I like to assign static addresses (via the router interface, not on each device) to known devices on my network.
2) if the ps3 is spamming for a new lease, the router may be ignoring it by implementing a timeout. The solution might be to disable wifi and wait a few minutes.
3) You might have a mixed-network issue. If all of your devices are wireless-G, try setting your router wifi to G only.
I had this same problem. I finally found out that the problem was that I had the same SSID and WPA key for both 2.4GHZ and 5GHZ on my router. I changed the SSID and WPA key on the 2.4GHZ and connected to that on my PS3 and it worked.
I guess PS3 doesn't work with 5GHZ?
Not sure if it will work for you, but I had the same issue, after trying everything with the router with the exception of running an ethernet cable, I entered my settings and disabled the UPnP and it worked. Hope this helps.
Cheers