Member Avatar for lechatboote

I see by the previous threads this is a common problem, ie I set up two new computers for my sister last year. SBC yahoo modem with a Dlink wireless router. The setup worked fine for about 4 months then one day BAM(emeril has left the building) the thing stopped working. Hardware all in fine working order. She contacted the help desk(better known as help-less) and after and hour or so of conversation their fix was to disconnect the router and just go with her computer hardwired. Well that works fine but the rest of the family would like to be online as well. Tested the router and the lan is fine, I can see all computers etc. We know the modem functions well too. But when you hook them up no internet. HELP any suggestions as to how to fix this.

Would be greatly appreciated.

:mrgreen:

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Dani AI

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A few focused diagnostics that build on and without repeating earlier suggestions.

  • Power-cycle and wait: unplug router and PCs, remove power from the modem for 30–60 seconds, then plug the modem back in and wait until its lights fully settle (several minutes). Only after the modem is fully up, power the router. This clears a modem-to-MAC binding that commonly blocks a new router from getting an IP lease.

  • Direct-test the modem: connect a single PC directly to the modem and confirm Internet access. If that works, the problem is between modem and router. If not, the ISP or the modem is the likely culprit and should be contacted.

  • Inspect the router WAN status (admin interface): note the WAN IP (if any). Addresses like 169.254.x.x indicate no DHCP lease. If the router shows a valid external IP but no browsing, check DNS settings or try pinging a public IP to isolate name resolution vs. reachability.

  • MAC and authentication checks: ask whether the ISP uses PPPoE credentials or registers a single MAC. If the latter, either clone the working PC MAC into the router or have the ISP clear the registered MAC/refresh provisioning.

  • Last-resort resets and precautions: back up any router settings, perform a factory reset if misconfiguration is suspected, then reconfigure WAN type correctly and test again.

If logs or the router WAN status are available, they will point to DHCP/PPPoE failure, DNS errors, or successful negotiation — each suggests a different next step.

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Member Avatar for knsljo

Try upgading the routers firmware. If that doesn't help send it back.

Member Avatar for Duki

have you changed any settings inside the webpanel? if so, what?

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