MS Win2008R2 dhcp server: "BAD_ADDRESS"

[hsachse]

Apple iPhone with iOS 8.3.x did not get ip adresses from DHCP server. The DHCP server leases shows entries labeled with "BAD_ADDRESS".

Looking for a solution to fix the ip address assigning problem.

[Doug]

They sure can...

https://gtacknowledge.extremenetworks.com/articles/How_To/Using-Real-Capture-to-capture-wireless-tra...

[hsachse]

Customer told me it was working before upgrading iOS to 8.x.

I will try to instruct him to create a wireshark trace for trouble shooting. He could activate tracing on the V2110 to get the required information.

[Doug]

That means the device may have sent a NAC to the offer it was given. That address may be in use already...

[hsachse]

Yes this could be a cause. But customer told me the address are not in use ...

[Doug]

Typically the device that got the offer will arp out to see if the ip is already in use, if it is the client tells the server via a decline and that address gets labeled as a Bad Address. The server should not offer it out again until the lease expires.