Win7 Guest DHCP not working fix: Difference between revisions

Latest revision as of 14:18, 6 October 2016

If you have problem with Win7 or Win2012 KVM guest with dhcp not working, you can try to disable checksum offloading

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

If you need to set NIC checksum only for IPv4/Pv6, TCP/UDP, RX/TX you can use the NIC Advanced setting here:

@@ Line 1: / Line 1: @@
-{{Note|Article about Proxmox VE 2.0}}
+If you have problem with Win7 or Win2012 KVM guest with dhcp not working, you can try to disable checksum offloading
-If you have problem with win7 kvm guest with dhcp not working, you can try to disable checksum offloading
+* Click Start - Search and type “regedit”.
-<pre>
+* Go to the following registry key:
-Disabling the Checksum Offloading the following way on Your Windows PC solved the Problem.
-. Click Start - Search and type “regedit”.
+HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
-. Go to the following registry key
+* Add a DWORD(32bit) Value named "DisableTaskOffload" and set it to "1".
+* Restart the Windows PC to make the changes happen.
-HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\Tcpip\Parameters
+=== Custom NIC Checksum Settings ===
+If you need to set NIC checksum only for IPv4/Pv6, TCP/UDP, RX/TX you can use the NIC Advanced setting here:
-HKEY_LOCAL_MACHINE
+[[File:NIC_Checksum.jpg]]
-\SYSTEM
+[[Category:Troubleshooting]]
-\CurrentControlSet
+[[Category: Qemu/KVM]]
-\Services
-\Tcpip
-\Parameters
-. Add a DWORD(32bit) Value named "DisableTaskOffload" and set it to "1".
-. Restart the Windows PC to make the changes happen.
-</pre>