BEFSR41 can't acquire DHCP lease

[raner]

Hi there,

a couple days ago my BEFSR41 started making trouble, and so far I have not been able to get it working properly again. When I hook up my laptop directly to the cable modem everything works fine, and I get an IP address via DHCP. When I connect through the router, though, the router status shows 0.0.0.0 for all DNS, gateway, etc. addresses, and even pressing DHCP Release/Renew doesn't change that.

Also, in the log I see these messages:

2012-08-08 20:30:41  warning  DHCP RENEW WARNING - Field invalid in response

2012-08-08 08:30:52  notice  TLV-11 - unrecognized OID

Since I can connect to the cable modem directly, it seems the cable modem is not at fault.

My overall setup is:

- BEFCMU10 cable modem

- BEFSR41 (not sure which version, but I believe it's a 4.x)

- WAP54G

Could it be that my provider (Cox Communications) has changed some configuration in their DHCP server, and my laptop (MacBook Pro) can handle it, but the router cannot?

What else can I try to further diagnose this problem?

Thanks!

[hillary681]

your router might have most likely RESET so all it needs is to be reconfigured. for cable internet service, it is important to enable MAC Clone. this is to register the computer's MAC address on the router to have the modem authorize the connection, thereby getting that all important internet ip address.

refer to this article: Setting up a Linksys router with Cable Internet service for step by step instructions on how to properly reconfigure your router.