Hi friends We are using windows server 2003 system, clients are xp and windows 7 systems. The problems only in windows 7 systems, xp clients are working properly. After restart it will work for a moment, suddenly the connection losing again.

Hi, Would you please let me know if you can access the mapped network driver via UNC path after losing connection? Did you receive any error message? Please update your network adapter manually from manufacture's website and check if the following KB is helpful. http://support.microsoft.com/kb/297684 Best Regards, NikiPlease remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

hi No, i can't access the connection, i have already check you suggested link. thanku

Hi, Can you ping the network drive? What is the error when trying to access the connection? First make sure the advance sharing setting is correct. If you use the router, please also update the router's firmware from the manufacture's website. Then let's check the required services are running properly. Check service ----------------------- 1. Click Start, type Services.msc in Start Search bar, and then press Enter. 2. In the right pane, double-click Network Location Awareness service. 3. In the Startup type list, click Automatic, click Apply, click Start, and then click OK. 4. Go to check the Network List Service as well. 5. After that, reboot the computer in Clean Boot. If the issue persists, open an elevated CMD windows and type the following commands one by one to reinstall your IPv4 and IPv6 Protocol. ipconfig /flushdns netsh interface IPV4 uninstall netsh interface IPV4 install netsh interface IPV6 uninstall netsh interface IPV6 install However, if it doesn't work, enable NetBIOS over TCP/IP for testing. 1) Go to "Control Panel -> Network and Internet ->Network Connections". 2) Right-Click on the connection and choose Properties. 3) Click "Internet Protocol (TCP/IP) Version 4" in the list. 4) Click Properties, and then click Advanced. 5) On the Advanced TCP/IP settings windows, go to "WINS" tab. 6) Under NetBIOS setting, click "Enable NetBIOS over TCP/IP", and then click OK. Best Regards, NikiPlease remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Dear My problem now temporarily solved now i am using DHCP in domain system not in router now working well Thanks