We have computers at one of our locations that are receiving the Microsoft error "Your computer was not assigned an address from the network(by the DHCP Server for the Network card with network address 000D568A99D0. The following error occurred. The operation was caceled by the user. Your computer will continue to try and obtain an address on it own from the network address(DHCP) server.
A technet article says that spanning tree is to blame. Has anyone seen this issue?
nothing in the logs and it is only happening to 4 out of 20 machines.
switchport access vlan 10
switchport mode access
switchport voice vlan 20 switchport port-security maximum 3
switchport port-security maximum 1 vlan access
switchport port-security maximum 1 vlan voice
switchport port-security mac-address sticky
switchport port-security mac-address sticky 0014.22b4.dc88
switchport port-security mac-address sticky 0015.fa14.ed4d vlan voice
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
mls qos trust device cisco-phone
mls qos trust cos
auto qos voip cisco-phone
This might not be the case but I will check for the DHCP reservation if you are using it. Also, though I am sure that you already did it, I will check to make sure that the MAC specified in the interface config is the one used by the the Dell's NIC.
This might seem like a drastic measure but how about starting those ports with a basic configuration? Like removing all the security and voip options.
This might be a stupid question as well, but do you have a link (i.e. green light) on the Dell's NIC? Are those interfaces in UP/UP status?