Hi! Has anybody been successful in configuring 802.1q VLAN support on a Lenovo ThinkPad T530 with Windows 8 Enterprise?
My ThinkPad has an 82579LM Gigabit Ethernet adapter. I've installed the latest PROWinx64 driver that specifically supports Windows 8 (Download Center). Advanced Network Services is installed. I am running Windows 8 Enterprise, 64-bit.
I am connected via the Ethernet port on my docking station to a Cisco SG200-26P 26-port Gigabit POE switch. All ports are configured for VLAN 1 Untagged, and my own port is also configured for VLAN 91 tagged. I haven't tried this while undocked, using the laptop's own Gigabit Ethernet port.
Elsewhere on this switch is a Windows Server 2012 server, and one of its ports is configured similarly. The appropriate PROWinx64 driver is installed on that server, and I've configured it to use VLAN 91 tagged. It works, it can access devices elsewhere on our network on VLAN 91.
With the PROWinx64 driver for Windows 8 installed on my laptop, I have network access on the untagged VLAN 1, as long as I don't configure any VLAN. But as soon as I add VLAN 91 Tagged and the untagged VLAN 1, I lose all connectivity. Not even the untagged VLAN 1 works. I don't get a Cable Unplugged message, unless I actually do unplug the cable.
In the Network Connections window, the "Status" of the two newly created interfaces shows "Enabled", as does the original interface. Under "Connectivity", nothing is shown at all. Without any VLANs configured, the Connectivity of the single interface shows "Internet Access".
If I right-click the newly created "Ethernet 3", which is my Untagged VLAN, and choose "Status" from the menu, I see "Not Connected" by IPv4 Connectivity and IPv6 Connectivity, "Enabled" by Media State, and "1.0 Gbps" by Speed. In the properties, both IPv4 and IPv6 are enabled. IPv4 is configured for DHCP, but it also doesn't work if I configure my usual static IP address.
The same goes for the VLAN 91 interface.
And if I try to ping any address on our networks, I get the message "PING: transmit failed. General failure." after every packet sent.