Member Avatar for Member #36984

OK, you will have to bear with me as I try to explain the problem.

I have a BT Voyager 2100 Wireless ADSL router, with one PC connected wirelessly and one connected with a wire.

Strangely, the difficult one (The wireless connection) works fine. However, when I try to access the internet using the wired connection, I can't get a connection.

I am using Windows XP Pro SP2 for the wired connection, and I think it must be something I need to change on the router's config page.

Any Ideas??

Cheers
PS - the bold words are key info! ;)

  • 1 Contributor
  • 2 Replies
  • 103 Views
  • 2 Days Discussion Span
  • Latest Post Latest Post by Member #36984

Dani AI

Generated

noted the problem was fixed in a later post. For others who hit the same symptom (one client works, another on the same LAN cannot reach the internet), the following quick checklist and commands will help diagnose and prevent common causes.

  • Start simple: swap the Ethernet cable and try a different router port or another PC to rule out a bad cable/port or NIC.
  • Isolate the client: temporarily disable wireless adapters or VPNs so only the wired interface is active.
  • Verify addressing: make sure the client’s TCP/IP settings (DHCP vs static), IP, and netmask place it on the same LAN as the router. If using static addresses, double-check each parameter.
  • Check the router: confirm the LAN DHCP service and lease table, look for MAC filtering or client-isolation features, and review the router’s status/WAN lights.
  • Software and drivers: temporarily turn off third-party firewalls/security suites and update the network adapter driver. Also check for duplicated IPs and disable unused virtual adapters.
  • Power cycle order: modem (if any) first, then router, then the client. Rebooting devices often clears state problems.

Useful Windows commands to gather facts (run in a command prompt):

ipconfig /all
ipconfig /release
ipconfig /renew
ipconfig /flushdns
ping <router_IP>
ping 8.8.8.8
nslookup example.com
arp -a
route print

Notes and cautions: export or backup the router configuration before making changes. Keep firmware and NIC drivers current. When assigning static addresses, either reserve them in the router or choose addresses outside the DHCP pool to avoid conflicts. If a wired client consistently fails while others work, methodically collecting the outputs above will usually point to either a physical/link issue, a configuration mismatch, or a router-side restriction.

Member Avatar for Member #36984

UPDATE - Tried to fix through config page - still no luck :(

Member Avatar for Member #36984

Aha - this post may be deleted now. I have found the problem and repaired it. The default gateway was different to the IP of the router! lol! **networking noob**

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.