Hi all, I just upgraded my WRT54GS (v.1.1) to firmware 4.7.06 (from LInksys website). I can connect to the Internet after the upgrade using wireless and WEP (128-bit). My PC clients use Linksys NIC (PCI and PCMCIA) with Speedboster, 1 laptop with Intel 802.1g built-in and 1 PDA. However, when I attempt to use WPA-TKIP (with Pre-Shared Key), the all my client shows that the connection is on and off every 5 seconds. This happened using either Linksys card (such as WPC54GS) or the Intel card. What happened is that Windows will shows the following: 1. First 5 seconds: Connected to Network 2. Next 5 seconds: Disconnected from Network 3. Next 5 seconds: COnnected to network The cycle will repeat again and again. It seems that the router have some issue with WPA that I never know about. Does anyone know about this? Thanks.