Member Avatar for bornok15

Network consists of windows xp with dynamically aquired ip addresses that uses a router to access the internet.. I have set one computer with a static ip address that holds a mysql database.. now this pc is not able to access the internet anymore and when i set the browser to use a proxy server(even if it doesn't) the browser asks for a username and password.. is there any way to go around this?? hoping for your help.. thanks!!!

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  • Latest Post Latest Post by hughv

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Below are focused diagnostics and fixes that build on the tips from and , tuned to separate three possibilities: the machine cannot reach the gateway, DNS/route problems, or HTTP traffic being intercepted by a proxy/captive portal.

First, run a small sequence to isolate reachability (run from an elevated command prompt). Look for (A) loss of link to router, (B) router/ISP blocking, or (C) DNS only issues. Expected interpretations are noted after each command.

ping <gateway-ip>        (fails = local link / IP conflict)
ping 8.8.8.8             (succeeds = internet routing OK; fails = router/ISP)
nslookup www.google.com  (fails while ping 8.8.8.8 works = DNS problem)
tracert 8.8.8.8          (shows where packets stop)
route print              (check default route)
netstat -ano             (see active listeners/ports)

If HTTP requests trigger an auth prompt, the traffic is hitting an HTTP proxy or captive portal. Check browser/IE LAN settings (Tools → Internet Options → Connections → LAN Settings): disable any proxy, disable automatic config script and automatic detection temporarily, then test. Also check the system (WinHTTP) proxy:

netsh winhttp show proxy
netsh winhttp reset proxy

If the network stack looks inconsistent or a transparent filter/LSP is interfering, reset the Windows stack (admin prompt) and reboot. Back up any custom IP settings before doing this.

netsh winsock reset
netsh int ip reset resetlog.txt
ipconfig /flushdns

If problems persist after the above: try briefly switching the machine to DHCP to rule out an IP conflict, inspect the router for web-login / parental-control rules, and scan the PC for proxy-injecting software or malware. Document the machine’s current static settings before changing them so MySQL continues to bind to the intended address.

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Member Avatar for cguan_77

try to go tools->internet options->go to connections tab click setup button try to setup a new internet connection...
try to go command prompt type ipconfig /all... check your ip settings...

Member Avatar for hughv

Make sure your fixed IP is compatible with the DHCP server. I.e., it's not using an address in the range controlled by the router.

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