Windows 10: Windows not getting IP from DHCP server and access denied on net

A couple of months ago my Windows installation started not connecting to the internet after boot, basically it doesn't get a valid IP address from my DHCP server it says "Invalid network configuration". Only way to solve this is to reboot and hope for the best, after a couple of tries it usually connects.The PC is co

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DHCP renewal of IP address with ISP denied

Hello

I wonder if anyone can advise concerning a series of messages appearing in the logs of my two networked computers?

Examples of the messages:

• ON ALPHA: The IP address lease 192.168.0.3 for the Network Card with network address 0x0024E8F1F44F has been denied by the DHCP server 192.168.0.1 (The DHCP Server sent a DHCPNACK message).
• On BETA: The IP address lease 192.168.0.2 for the Network Card with network address 0x7071BCA36DBF has been denied by the DHCP server 192.168.0.1 (The DHCP Server sent a DHCPNACK message).

The advent of either appears to kill my internet connection requiring a router restart. I should add that sometimes both PCs are on, but often only one is. In the latter case, the issue still occurs on the active PC, normally BETA because it is the more powerful of the two.

To describe this network, ALPHA is a Windows 7 32bit laptop, and BETA is a 64bit Windows 10 desktop. Both PCs are connected to the internet via a Netgear DC834GV3 router connected to my ISP.

ALPHA has LAN network address 192.168.0.3, and BETA is 192.168.0.2. The router is 192.168.0.1. A simple network map is displayed below:






Both PCs are getting on a bit but are still fully working. The PCs and router are powered off usually and the cables disconnected from the mains, but the messages still occur with the router left on but the PCs switched off.

Thanks

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Computer on network can't get ip through DCHP or Static ip...

check if the dhcp server have a mac address white-list. if so, enter the mac address to that list. sometimes net admin restrict access to only known mac addresses.

 

FIXED: ipconfig /renew returns Unable to Contact DHCP Server. DHCP Access Denied. A million errors with no solution.

There are steps here to try for DHCP giving Access Denied:

https://www.thewindowsclub.com/dhcp-client-serv...

https://www.wintips.org/how-to-fix-dhcp-service...



This can mean a corrupted User Account so try Step 16 in this checklist to create a new Test Admin user account to see if it resolves:

http://answers.microsoft.com/en-us/windows/wiki...

Try also resetting your network settings:

https://www.kapilarya.com/how-to-reset-network-...