DHCP Vendor Class Identifier for MSFT 50, 50.0, and MSFT 50.0: Understanding the Differences
Introduction
The DHCP (Dynamic Host Configuration Protocol) vendor class identifier is a field in a DHCP request that identifies the type of device requesting an IP address. For Windows computers, the vendor class identifier is "MSFT 5.0", while for Android devices, it is "dhcpcd-5.5.6".
MSFT 5.0: Windows Computers
The vendor class identifier "MSFT 5.0" is used by Windows computers to identify themselves to DHCP servers. This value has been used for many years and is widely recognized by DHCP servers.
MSFT 50.0 and MSFT 50: Updated Windows Devices
Some newer Windows devices are now using the vendor class identifier "MSFT 50.0" or "MSFT 50". This updated value indicates that the device implements the latest version of the DHCP specification and understands all encapsulated vendor-specific options defined in the specification.
MSFT 50 XBOX: Microsoft Xbox
The vendor class identifier "MSFT 50 XBOX" is used by Microsoft Xbox consoles. This value indicates that the client device is an Xbox and understands all vendor-specific options defined for Xbox devices.
Troubleshooting Vendor Class Identifier Issues
If you are having trouble getting a DHCP lease for a Windows computer or Android device, check the vendor class identifier in the DHCP request. If the vendor class identifier is incorrect, the DHCP server may not be able to provide an IP address. You can also try disabling 2.4Ghz temporarily on your router portal and then enabling it again. This can sometimes force the device to request a new DHCP lease.
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