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the PS3 may suffer from the same limitations as the AT&T Uverse TV set top boxes. We had a problem with the settop box and the 1522, cause the 1522 will Mask the DHCP servers MAC address on the LAN with it's own. Almost acting as a proxy for the LAN side DHCP. AT&T had issues with this, as the box's would fail to pull DHCP. I'l have to test it.
Actually we just tested it, and it worked wonderfully. So the problem is with your router or the setup.