I'm trying to bring the network adapter issue to Intel's attention.
Did you try to update your DH77DF with the latest 0108 BIOS?
Are you still experiencing the LAN adapter problem?
If you could please reply with your result in this thread:
Thanks and regards.
Regarding NIC disconnection problems on DH77DF running Windows 8 64b.
integrated NIC: Intel 82579V
Running on BIOS rev. 0108
- Integrated NIC is disconnected after resuming from sleep - Using latest NIC driver from Intel
- Integrated NIC is disconnected after resuming from sleep - Using standard Windows 8 Intel driver
- Integrated NIC is connected after resuming from sleep - Using standard Windows 8 driver; power saving option disabled!
- sometimes the NIC is disconnected after a cold boot, but its difficult to reproduce this issue.
In all described situations a hardware re-detection from Windows 8 device manager will re-enable the NIC.
Is this the same problem that you people are referring to in this thread?
** UPDATE 25 march 2013 **
downgraded BIOS to version 0103
- problems described still exist on this older BIOS.
i read something in fora that the integrated Intel NIC seems to have problems with auto-negotiation on several network switches; different cable lengths/qualities, etc...
for now i'm trying these settings in combination with my NetGear GS108 1Gbit switch:
- fixed speed/duplex 1000/Full in the adapter properties
- power saving option enabled again. (back to default setting)
Until now (a few hours testing) i did not notice any disconnects anymore.
For testing purposes: i plugged the NIC directly on a Gbit port of my Fortinet firewall instead of my NetGear GS108.
i restored all settings of the NIC back to default:
- Speed/Duplex: auto/auto negotiation
- Power-saving on
I'm still testing...
I'm wondering; IF this problem has anything to do with bad auto negotiation WHY does it completely looses the connection to the NIC itself in the Windows device manager? that should not happen at all, very strange, it's seems to me there is some serious driver/hardware issue with this Intel network interface.
*** UPDATE 26 march ***
On BIOS version 0103 and 0108 i didn't notice any disconnects any more while connected to my Fortinet firewall.
It seems the used switch is influencing the disconnects of the Intel 82579V nic.
*** UPDATE 27 march ***
BIOS 0108: the NIC also disconnects when connected to my Fortinet. The problem occurs on both switches.
Is it you who has marked your own earlier post as a "correct answer" to this question?
If so, that is rough. Bad form generally I think, but it wouldn't matter very much if it were true. But it's false.
I doubt I am the only (potential) user waiting for a proper resolution to this thread (and its sister thread).
@Diego_Intel undertook to check status and return with update--two weeks ago. Perhaps he has left the company or been unwell (sorry if so).
In my case, I hesitate to invest time in building a system based on the DH77DF, because the ethernet seems to be so flaky (or is it the 82579V that is flaky, on all the boards where it is installed?).
Simple question (I hope): does the ethernet on the DH77DF function on *any* boards at all, using the latest BIOS 0110?
Less simple: if the ethernet does work on some boards, what makes them (or their setup) different from those on which it ceases to work after BIOS 0103?
It's frustrating (and not your fault, or Intel's) that the users who have reported problems in these two threads have (with very few exceptions) given no details of their hardware or software configurations.
I'd really appreciate further details, so I can decide whether to build with this board or RMA it.