This occurred to me when I had the speakers plugged in during IDT Audio driver installation and again after I had removed the speakers (presumably with power supply off). Installation should be INF and then audio. Test, if problems with sound or yellow bang, uninstall audio and reinstall. The waiting to play sound may qualify as a problem since it persists. I'm about to look at the registry myself. I have moved LAN up in my sequence but Intel only refers to the first two now.
I have face same problam.
LAN Driver for DH55HC sometimes works and sometimes does not. Disconnecting and reconnecting ethernet cable or re-booting sometimes restores operation.
any other way to conect to internet.
I've had the same experience that another post mentioned. Installing a graphics card fixed an audio issue and after removing the card the audio still worked correctly with a certain program. Reinstallation of the driver is still the best option. Updates may have fixed the issue mentioned above where the log-off sound was required for shutdown but it is also possible an old speaker set had an intemittent short that affected the motherboard. A newer speaker set was connected and was then removed much later with no shutdown problem returning. Shorts could have unpredictable effects on power management including the LAN. The case is another possible source of shorts. The tabs above the back panel should contact the board.