Share via

DHCP Discover reaches Server but Server doesn't respond

Question

Friday, April 24, 2015 5:52 PM

I have setup DHCP on my domain controller. It's authorized, configured with an active scope, etc.  When I perform a DHCP renew from a client, I can see the DHCP discover frame reaching the server (verified the client MAC within the frame). However, the DHCP server never responds with an Offer. When I look at the DHCP server log in \system32\dhcp there is no mention of any requests, denied or otherwise...nothing. I have disable the Windows Firewall and the Sophos security agents to make sure the Windows Filtering Platform isn't dropping the frame before it reaches the DHCP Server service. I'm kind of stuck on figuring out what's happening.

Any suggestions?

All replies (3)

Monday, April 27, 2015 8:48 AM âś…Answered

Hi  Ewood70 ,

First ,we need to ensure DHCP service is running .

Open Services and check if DHCP Server is running .

Then ,we need to check DHCP audit logging is enabled .

Here are the steps :

  1. Open DHCP .
  2. In the console tree ,expand the DHCP server .
  3. Click IPv4 (or IPv6) .
  4. On the Action menu ,click Properties .
  5. On the General tab ,select Enable DHCP audit logging ,and then click OK .

At last ,we can check the events of DHCP server to find out the problem .

Open Server Manager and click DHCP Server .We could see the events on the right .

Best Regards,

Leo

Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected].

Wednesday, January 17, 2018 4:15 AM | 2 votes

I realize this is a 3 year old question, but I'm going to post anyway just in case someone else who's dealing with a similar problem (like I just was) happens along and needs some help.

I had a very similar situation.  I could clearly see the Discover broadcast traffic via Wireshark but my DHCP server wasn't answering it.  Yet I could take a laptop, ipconfig /release then /renew it and see everything working just fine.

What it turned out to be:  I had by mistake at some point in the past configured the scope in my DHCP server (Scope -> Properties -> Advanced    Assign IP addresses dynamically to clients of   ) was set to DHCP only and not Bootp.  When I change the setting to "Both",  everyone was happy.

 

Monday, May 20, 2019 3:47 PM

Thank you for coming back and commenting!  Those of us in similar situations thank you!

Jason W. Pegg