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I have an issues where laptops running Microsoft Hyper-V connect to Cisco 7941 handsets. This is causing no end of problems across the estate including phones registering on the data vlan, phone stuck in reboot cycle, phones not registering in CDP, l...
Update after XP machines had DHCP removed.
The problem disappeared! No issue with Cisco config and setup it is an issues with XP running on Hyper-V requesting DHCP.
We never managed to capture the fault as it happened, however, giving XP machines a s...