Client not getting IP from router

[tahequivoice]

I have a really strange problem. I have 2 2800 series routers configured the same, but with different subnets. One works fine, the other the client can't obtain an IP, and hardcoded, cant ping.

I ran DHCP debug and I can see the router assigning the IP, and I see and ARP entry that matches the MAC of the client.

*Feb 24 11:33:55.915: DHCPD: Sending notification of DISCOVER:

*Feb 24 11:33:55.915:   DHCPD: htype 1 chaddr 000a.e40c.d232

*Feb 24 11:33:55.915:   DHCPD: remote id 020a0000ac10760101000078

*Feb 24 11:33:55.915:   DHCPD: circuit id 00000000

*Feb 24 11:33:55.915: DHCPD: Seeing if there is an internally specified pool cla                                          ss:

*Feb 24 11:33:55.915:   DHCPD: htype 1 chaddr 000a.e40c.d232

*Feb 24 11:33:55.915:   DHCPD: remote id 020a0000ac10760101000078

*Feb 24 11:33:55.915:   DHCPD: circuit id 00000000

*Feb 24 11:33:55.915: DHCPD: requested address 169.254.29.219 is not on subnet 172.16.118.0.

*Feb 24 11:33:57.915: DHCPD: Adding binding to radix tree (172.16.118.6)

*Feb 24 11:33:57.915: DHCPD: Adding binding to hash tree

*Feb 24 11:33:57.915: DHCPD: assigned IP address 172.16.118.6 to client 0100.0ae4.0cd2.32.

Internet  172.16.118.1            -   0021.d8f9.8356  ARPA   Vlan120

Internet  172.16.118.6            0   000a.e40c.d232  ARPA   Vlan120

On the other router, not a single issue, works just fine, and the configurations are identical except for the subnets.

Bad card maybe? HWIC-4ESW

[ty.masse]

I don't think it's a bad card on the router.   We don't have much info about the client.  But it seems to me that it may have a firewall on that's blocking ICMP.

[tahequivoice]

Thats what we thought, but we also noticed the LED for data wan't blinking on the card and he could not ping anything, not even the router.  When He did an IPconfig, when set to DHCP he had the 169 IP, not the 172 IP that was assigned. He hardcoded an IP, no change. It is as though the transmit to him was bad.

He tried a few different cables, and then connected the machine to the switched network behind the router and got an IP from that network and was able to work. When he switched back with th eknown good cable, same thing as before.  He has used this same laptop on the other switch with the same setup and it worked fine.  It is pointing to the card as the problem. We tried all ports, no difference.

[ty.masse]

Do you have a Ethernet loop back cable? Or can you make one? Plug it in to the port in question you should get a link light. Also make sure that port is in spanning tree port fast. If you do sh diag does the router see the module?

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