Hello All, My configuration is follows ; -- HP Pavillion Dv1000 Laptop, running Windows XP SP2 (with almost all released updates from Microsoft online update) -- Intel PRO/Wireless BG 2200 Wireless LAN Adapter with Intel latest drivers 18.104.22.168. In the wireless driver configuration â€œPower Managementâ€ and â€œTransmit Powerâ€ sliders are set to maximum, while â€œThroughout Enhancement (packet bursting)â€ is enabled. -- â€œWireless Zero Configurationâ€ as of Windows default is used to manage the Wi-Fi settings (not the Intel PROSet Utility which usually comes around with latest drivers download). The â€œInfrastructure Modeâ€ for wireless LAN is used. The wireless connection in the Windows is set on DHCP mode to obtain the IP address automatically. -- Linksys WRT54G Wireless Router Ver 7 , with firmware 7.00.6 upgraded as of March-2007. -- Internet connection is Ethernet Internet Cable Connection . CAT5 wire running from Cable Providerâ€™s ethernet Switch to my home. I have connected the ethernet wire in â€œRegular Switch LAN Ports (1-4)â€ of the Wireless router not in the â€œWANâ€ port. -- The cable net providers IP address range starts from (172.16.0.x) while subnet is 255.255.240.0 . If I connect my PC directly to the WIRED connection without the router I get an IP address of the same range and subnet. -- The "Internet Connection Type" is DHCP on the router to get the IP address for itself. This enables the router to get an available IP from within the same range of the Cable Internet Network. -- The "Network Address Server DHCP" on the router for "Incoming Connections" is disabled, usually called NAT settings. So my Laptop connecting to the router does not gets an IP withing the range of (192.16.x.x) , but instead it also gets an IP from within the same range of the Cable Internet Network (172.16.0.x). This is necessary for me to see the LAN shared files on the local neighbourhood computers. -- There is another IP setting on the Configuration Page of the Linksys WRT54G (if you may have seen it) which says "Router IP Address" or "Local IP Address" which is set to default "192.168.1.1" with subnet "255.255.255.0" (on almost all of the wireless router brands I have seen). With the above mentioned configuration my Internet Connection works fine, but there are periodical and intermittent disconnection , in which the Wireless Adapter Light and connection Icon on Laptop goes off and then switches back on again. This continues without a fix interval and happens randomly. Disconnection may occurs in 5 minutes or maybe in 2 hours, and causes all ongoing connections / browser downloads to break. I have all the following remedies but it continues to happen ; -- Have made a unique SSID and set to broadcast. The router and wireless card on the laptop both set in â€œG Onlyâ€ mode . Using default â€œChannel 11â€. The MTU is default â€˜1500â€™. Beacon Interval is â€˜50â€™. RTS and Fragmentation threshold set to â€˜2307â€™. Enabled â€˜Burst Modeâ€™. -- There are no other wireless routers / networks in my area neighborhood â€œfor sureâ€. Router is placed within â€œ2 feetâ€ vicinity of the laptop. (basically both are placed on my room table). No substantial obstruction is present b/w the router and the laptop at all. -- My cable internet provider called me and said you have to change "Router IP Address" or "Local IP Address" since the "192.168.1.1" is causing interference with other computers and servers on his side since he is running the ranges of (172.16.0.x). So I assigned the router's local IP to a Static number from within his range (172.16.15.250) , however i cannot assign the same subnet of my cable internet provider. In the router's web config page I can only select from a list of given subnets which does not contains the subnet my internet cable provider is using (255.255.240.0). I have selected the subnet to be (255.255.255.0) from the list. Can this have any implication in router and wireless LAN adapter disconnecting ? . Since the router's Local IP cannot be seen on the LAN network itself. Thank you for reading a long post, but I like to give as much detail as I can so anyone can be able to offer a better idea/solution for my disconnection problem. Its been days now that I am reading various similar posts and browsing forums for trouble-shooting. I have not been able to diagnose whether its a problem with the router or the wireless LAN adapter or both or with any other software settings on either side, since I have almost tried optimizing all of them. Best Regards, S.F.Hasan.