My office is connected via a LAN. My system has a strange problem: I frequently lose my network
connection on my computer. When this happens, however, I am able to ping the network. To restore
the connection, I am forced to restart my machine. Can you help?
Here are some troubleshooting steps:
1. Check system configuration and TCP/IP settings:
- Make sure subnet mask is correct.
- Make sure DNS servers exists.
- Make sure default gateway is correct.
- Check DHCP server for duplicate IPs.
2. Run full system diagnostics:
- Inspect memory.
- Inspect network adapter.
- Inspect motherboard.
3. Run full anti-virus scan:
- Get latest engine and signature.
- Perform full scan.
4. Connect system to another network jack and use working cable:
- Connect system to another switch port.
- Test connectivity from another area.
- Connect another system in your area.
5. Uninstall and then re-install network card driver from vendor's Web site:
- Make sure you select manual location and specify drive folder.
6. Replace NIC with working NIC and put old NIC in another system and try to reproduce issue.
7. If you have a built-in firewall, temporarily disable it and see if issue stops.
8. Uninstall and re-install TCP/IP software from original.
9. If using Windows OS, uninstall and re-install Client for Microsoft software.
10. Re-apply the latest service pack.
11. Re-install OS and apply service pack.
This was first published in September 2004