Member Avatar for gibsterj

Hi,
Somehow I messed up my setup and have not been able to get it working again with the router; now only one machine at a time can connect to the Internet in my house. (Also I can't get my new Kindle to connect, but one thing at a time here.) I have:

Windows XP laptop and desktop computers
D-link DI-604 router H/W E1 F/W 2.18
Netopia 3341-ELK Modem running firmware NETOPIA_4.2.2_1
Linksys Wireless-G Access Point WAP 54G ver. 3.1

I used to have this hooked up with the Linksys access point and Netopia modem both hooked up to the router so multiple machines could use wireless, and I could also access the modem with an Ethernet cable from my laptop to the router. But somehow I lost the configuration and now I can't get it to work with the router anymore. I've Googled and found what seemed to be good explanations online for setting this up, but have just not been able to get it back working. Sure would appreciate some help.

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  • Latest Post Latest Post by techsheaven

Dani AI

Generated

Quick diagnostic and a minimal, repeatable fix plan that builds on ’s questions and avoids guessing what changed.

  1. Identify who is issuing IPs. On the machine that does work run:

    ipconfig /all

    Note the IPv4 address, Default Gateway and DHCP Server. If the gateway/DHCP are a private address (192.168.x.x, 10.x.x.x, 172.16.x.x) the modem is acting as a router; if the address is public the router is likely behind the modem or the modem is in bridge mode.

  2. Isolate the link. Disconnect everything, connect one laptop directly to the modem, power-cycle modem + laptop. If that laptop gets a public IP and internet works, the modem is giving the public session. If the modem is giving a private LAN address, it is in router mode.

  3. Common causes for “one machine at a time”

  • ISP/ADSL device is handling the PPPoE session and allows only one MAC/session.
  • Two devices are both running DHCP (address conflicts).
  • Access point still has DHCP enabled or was configured as a router instead of an AP.
  1. Restore a simple, robust configuration (recommended)
  • Put the modem into bridge mode (so it is a modem only) and let your router perform the PPPoE login and DHCP for the LAN.
  • On the router configure the WAN as PPPoE (enter ISP credentials), enable LAN DHCP.
  • Configure the Linksys device strictly as an access point: disable DHCP on it, give it a static LAN IP inside the router’s subnet for management, and connect its Ethernet port to a LAN port on the router.
  1. Practical tips
  • Power-cycle in sequence after changes: modem -> router -> AP -> clients.
  • Use ipconfig /release and ipconfig /renew on clients, and ping <gateway> to confirm local connectivity.
  • If ISP session remains tied to a single MAC, rebooting the modem clears it; contacting the ISP can also confirm session limits.
  • Factory-reset devices only as a last resort, save working configs once fixed.

This follows ’s troubleshooting direction (bridge vs router, check configs). The steps above isolate the problem reliably and produce a single DHCP/NAT point, which eliminates the “one device at a time” symptom and lets wireless clients (Kindle, laptops) get addresses from the router.

Member Avatar for techsheaven

Well, I couldn't get a picture of what you are trying to do there, so let's gather more information. Correct me if I have misunderstood.

You have an ADSL modem (Netopia - Earthlink ISP?)
-is is operating in Bridged Mode, or Router Mode?
-can you access configuration settings on this?
-what does the physical lay-out look like on the computer that is working?
-Did you need to make changes to the connections to make this work?
-What happened to make your configuration change?

Has there been any changes to your router?
-Can you access the configuration settings?
-What mode is this in?

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