DHCP do not renew expired leases

Question

_{Tuesday, November 20, 2018 8:29 AM}

Hi,

I have configured one scope for vlan in DHCP 2012 R2, lease time is set to 8 days, every computer in this scope have its own IP reservation.
Now the problem is, when 8 day lease expiry, computers can't renew its IP, even if computer is rebooted several times.
To resolve this I need delete everything in DHCP 'Address Leases' , now computers getting their IP.
After next 8 days the problem come back.

All replies (8)

_{Wednesday, November 21, 2018 3:18 AM}

Hi，

Would you please run the” ipconfig /release” & “ipconfig /renew” command and see what happens? Is your computer’s IP address successfully renewed or do you get an error message?

You may refer to the following links for details:

https://helpdeskgeek.com/networking/how-to-fix-cannot-renew-ip-address-in-windows/

Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.

Regards,

Zoe

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_{Friday, November 23, 2018 1:50 AM}

Hi,

Just checking in to see if the information provided was helpful.

Please let us know if you would like further assistance.

Best Regards,

Zoe

Please remember to mark the replies as answers if they help and unmark them if they provide no help.
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_{Monday, November 26, 2018 1:28 AM}

Hi,

Was your issue resolved?

If you resolved it using our solution, please "mark it as answer" to help other community members find the helpful reply quickly.

If you resolve it using your own solution, please share your experience and solution here. It will be very beneficial for other community members who have similar questions.

If no, please reply and tell us the current situation in order to provide further help.

Best Regards,

Zoe

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_{Monday, November 26, 2018 12:47 PM}

No my problem is not resolved 
I did simple steps like ipconfig /release ipconfig /renew but it do not renew IP lease, it getting 169.x.x.x ip
This VLAN have forwarder to windows dhcp server configured (on mikrotik router). Do I need any configuration on windows 2012 r2 to allow request from dhcp forwarder?

_{Tuesday, November 27, 2018 2:54 AM}

Hi,

You have a 169 address because your device, likely a Windows PC, is attempting to use DHCP, and nothing is responding to its broadcast DHCPDISCOVER message. This may because your DHCP Server doesn’t work or the DHCP message is blocked because of your firewall settings.

You may refer to the following steps to troubleshoot the issue:

• Make sure that your router/switch ports/wiring all works fine
• Make sure that your Relay Agent is configured in the right way
• Ensure the DHCP Server Service is running and see if you can ping the DHCP server
• Disable the Windows Firewall on both the server and the client
• Disable the 3rd party security solution if there is any

Regards,

Zoe

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_{Thursday, November 29, 2018 2:43 AM}

Hi,

Just checking in to see if the information provided was helpful.

Please let us know if you would like further assistance.

Best Regards,

Zoe

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 Subscriber Support, contact [email protected].

_{Monday, December 3, 2018 1:51 AM}

Hi,

Was your issue resolved?

If you resolved it using our solution, please "mark it as answer" to help other community members find the helpful reply quickly.

If you resolve it using your own solution, please share your experience and solution here. It will be very beneficial for other community members who have similar questions.

If no, please reply and tell us the current situation in order to provide further help.

Best Regards,

Zoe

Please remember to mark the replies as answers if they help and unmark them if they provide no help.
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_{Tuesday, December 4, 2018 6:08 AM}

Hi,

As this thread has been quiet for a while, we will propose the solution as answer. If you need further help, please feel free to reply this post directly so we will be notified to follow it up. You can also choose to unmark the answer as you wish.   BTW, we’d love to hear your feedback about the solution. By sharing your experience, you can help other community members facing similar problems. Thanks for your understanding and efforts.

Best Regards,

Zoe

Please remember to mark the replies as answers if they help and unmark them if they provide no help.
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