Intel Communities: Message List - Can't get 1000Mbps under Windows 7 RC1 with PRO/1000 GT

Re: Can't get 1000Mbps under Windows 7 RC1 with PRO/1000 GT

webadmin@intel.com — Wed, 08 Dec 2010 21:47:30 GMT

I have the same problem on Windows 7 Ultimate with an Intel Desktop DP55KG motherboard connecting to a netgear switch. Out of the box, the intel nic connects with 10 Mbps. I can hard set it to 100 Mbps Full Duplex, but 1 Gbps causes it (the nic) to go off-line. This is the on-board nic.

What Windows says:

Intel(R) 82578DC Gigabit Network Connection

Driver 11.0.41.0

6/22/2009

Checked the "update driver ..." option but there is no update available.

Had a prior intel mobo in this box and it worked just fine with the netgear switch (prior mobo was a D53350 with Core 2 Quad).

The only change made was the motherboard/cpu, and now I don't get gigabit ethernet. Motherboard has updated firmware too as of 10/2010.

Is there a bios setting on this mobo that controls the on-board ethernet controller's link speed negotiation?

Re: Can't get 1000Mbps under Windows 7 RC1 with PRO/1000 GT

webadmin@intel.com — Mon, 23 Aug 2010 08:20:26 GMT

Sorry to revive a dead thread. I am also having issues with the PRO/1000 GT card only doing 10 Mbps on Windows 7. My onboard runs just fine at 1 GB and Auto Negotiates almost instantly. While as when i plug the cord into my PRO/1000 GT 10 Mbps, and it takes about 30 seconds in order to negotiate. I've tried forcing it, and what not. Still nothing. I'm using a Netgear switch as well. (Netgear Prosafe gs105 to be exact) I cannot update the switch and would really hate it if i had to. (seeing as its an unmanaged switch, I can't touch it.)

Is there any enlightment on this issue yet? Also, they are still selling these cards, I don't understand why you are not providing drivers for them?

I should also add, It was working fine until I installed 7, and have been using onboard ever since, but it causes some latency issues, which is why i bought this card in the first place, and would love for it to work without a hitch again.

Re: Can't get 1000Mbps under Windows 7 RC1 with PRO/1000 GT

webadmin@intel.com — Tue, 17 Nov 2009 18:04:04 GMT

Thanks for updating the thread. No driver update is planned, but I will still escalate this issue to the appropriate sustaining team. I can't promise a new driver, but maybe we can come up with something that will help. I will post updates to this thread as I have them.

Re: Can't get 1000Mbps under Windows 7 RC1 with PRO/1000 GT

webadmin@intel.com — Tue, 17 Nov 2009 05:07:51 GMT

Is Build 7600 the RTM of Windows 7 Ultimate for x86? I can't see how to tell. Anyway still at 10 Mbps with it.

Re: Can't get 1000Mbps under Windows 7 RC1 with PRO/1000 GT

webadmin@intel.com — Sat, 07 Nov 2009 01:56:01 GMT

... except that the same adapter/switch/cable do make a gigabit connection running Windows XP.

Thanks for your efforts.

Re: Can't get 1000Mbps under Windows 7 RC1 with PRO/1000 GT

webadmin@intel.com — Fri, 06 Nov 2009 21:20:53 GMT

Considering what you had to do in Linux, this appears to be an incompatibility between your switch and that adapter. I cannot think of anything else for you to try other than a different Ethernet adapter or a different switch.

Re: Can't get 1000Mbps under Windows 7 RC1 with PRO/1000 GT

webadmin@intel.com — Thu, 05 Nov 2009 03:08:53 GMT

Changed MasterSlave from 0 to 1, rebooted, 10 Mbps connection. Changed it to 2, rebooted, 10 Mbps connection. Set it back to 1 and took a shot in the dark - changed "*SpeedDuplex" to 6, trying to force a 1 Gbps connection - but no, still just 10 Mbps.

Re: Can't get 1000Mbps under Windows 7 RC1 with PRO/1000 GT

webadmin@intel.com — Wed, 04 Nov 2009 20:51:10 GMT

I think you are on to something here. If you had to compile your driver with CFLAGS_EXTRA=-DE1000_MASTER_SLAVE=1 to get a 1 Gig negotiated link, then that tells me that the Ethernet controller in your switch is set to only work as a slave and some incompatibility between the switches Ethernet controller and the Intel Ethernet controller is not allowing a normal connection. In that case, I do not know any way to work around that for Windows 7.

Support for that setting requires Intel(R) PROSet and there is no Intel(R) PROSet for your adapter in Windows 7. In other words, you should not be seeing an option to configure the Gigabit Master Slave Mode in the Advanced Adapter Settings and configuring the Gigabit Master Slave Mode is probably having no effect.

Still, I wonder if we could get around this by adding a new string to the registry key for that adapter. I do not know if that would work, but you could always try.

Here are the steps to try. First a disclaimer.

CAUTION: Using Registry Editor incorrectly can cause serious problems that may require that you reinstall your operating system.
Use Registry Editor at your own risk.

Run regedt32
Navigate to Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4DE36E972-E325-11CE-BFC1-08002BE10318}. All the network adapters have numbered entries under that key.
Search for your adapter name (use Control+F), Intel(R) PRO/1000 GT Desktop Adapter. You will find the name as the data for the DriverDesc string.
Add a new string value to the numbered key. (Right click on the numbered folder and choose New String Value). NOTE: You do not need a new string value if you already have a string named MasterSlave. Instead, you can just change the data's value in step 6.
Name the new string value MasterSlave
Modify the new string value data. Set the value data to 1. (0 = Auto Detect; 1 = Force Master Mode; and 2 = Force Slave Mode)
If forcing master mode, data set to 1 does not work; go ahead and try forcing slave mode, data set to 2.

Like I said. I do not know if this will allow you to connect at 1 Gbps or not, but maybe this will work. Please post your results back here.

Re: Can't get 1000Mbps under Windows 7 RC1 with PRO/1000 GT

webadmin@intel.com — Mon, 02 Nov 2009 22:51:26 GMT

Same behavior with Link Speed set to Auto Negotiation, Advanced/Gigabit Master Slave Mode set to Auto Detect, Performance/Flow Control set to Rx/Tx Enabled.

If it helps, I have the same model adapter in a Linux box, and the driver "out of the box" connects to the switch at 10 Mbps. I have to recompile the e1000 driver with the CFLAGS_EXTRA=-DE1000_MASTER_SLAVE=1. That's why on Windows 7 I have tried setting Gigabit Master Slave Mode to Force Master Mode, but it hasn't helped. On Linux I also add to the modprobe command "AutoNeg=0x28", which if I recall correctly tries to force a gigabit connection - tried to accomplish the same thing on Windows 7 by setting Link Speed to 1.0 Gbps Full Duplex, but it still connects at 10 Mbps.

Re: Can't get 1000Mbps under Windows 7 RC1 with PRO/1000 GT

webadmin@intel.com — Mon, 02 Nov 2009 17:31:06 GMT

I doubt that the adapter is defective. As you pointed out in your original post, everything worked fine under Windows XP.

I just installed WIndows 7 (RTM, not RC1) on my desktop and connected my Intel(R) PRO/1000 GT Desktop Adapter to a Netgear Prosafe GS724AT switch. I get a 1.0 Gbps link. I am using all default settings on my adapter.

Do you have Link Speed & Duplex on the adapter set for Auto Negotiation? Usually, there is no change the speed & duplex options. Is there anything you changed on any of your network settings in Windows or in the adapter properties?

Maybe this problem will clear up after youu install the released version of Windows 7. That is what I would try at this point.