Hi,The story is simple, 2 Windows 7 RC systems involved, one is dell laptop and the second is desktop - HTPC, Server and File ServerBoth PC's are on same network, wireless - laptop and wired - desktop , single Linksys router.Problem is a sleep issue with both of them, but let us focus on the desktop:1. Network adapter is set with all 3 ticks in Power Managment tab ( I use WOL magic packet to wake the server ) 2. Both PC's are in same workgroup NOT USING the HomeGroup option of Windows 7, both PC's have some folders shared with simple file sharing.3. Desktop won't go into sleep when the laptop is ON, when laptop isOFF it will eventually sleep - here going to sleep means by it's internal inactivity timer.4. Forum's searches suggested running a energy report by "POWERCFG -ENERGY" in elevated command prompt, this was done on both of them while both are ON and revealed the suspicious (line) reason for this: System Availability Requests:System Required Request The device or driver has made a request to prevent the system from automatically entering sleep. Driver Name \FileSystem\srvnet This line appears on both of them in the energy-report.html file after default 60 sec check performed.I think this issome sort ofnetworking issue maybe some service or protocol on every PC constantly quaering each other and preventing it going to sleep.Hope this one will be adressed soon.

Try removing them from the homegroup and see if you still have the issue. Also, do you have Windows updates set to run automatically?

sAXIn - I know you've got your server set to WakeOnLAN, but when I was having the same problem with my x64 RC machines, I unchecked the "allow this device to wake computer" checkbox and they were both able to slumber peacefully on their own...and stay asleep. Previously even if I put them to sleep, they would wake up shortly thereafter. If you must sleep your server this won't be a viable solution for you though. ironically, with x64 RTM, the problem is back - even with the above option unchecked. Woe is me... oh yeah, after powercfg -requests (which shows what's keeping your system up at night), it says: SYSTEM: [DRIVER] \Filesystem\srvnet An active remote client has recently sent requests to this machine. now I wonder what that could be...Dropbox maybe??

I'm having the same problem here immediately after installing a second machine running Win 7. Both are RC and Ultimate, one 32 the other 64. The 64 bit version was reliably sleeping for months, but when I replaced a Vista machine with a Win 7 32 bit, BOTH keep each other awake in a vicious cycle. I use powercfg /energy or /requests and get the same error as above. I have stripped all other connections from the network and de-selected Mediacenter and deleted the Homegroup that was working. Both did not help. Since I don't know much on networking I am not sure where else to look, but I can reliably fix the problem in one PC by taking THE OTHER one off line or forcing a sleep. And it works symmetrically. It is particularly hard to diagnose as there is a long timeout of many minutes from disconnecting the network until the error message goes away . The network adaptors have all been set to powerdown and not accept wake. Any ideas? I see lots of posts on this but no answers other than suggesting some of the things above and that clealy does not help.

After "playing" for a good while, I determined that shutting down the print spooler service allowed the system to go to sleep.What now? I / We need the spooler for all the printing!!

I had the same problem with srvnet on my workstation. What I finally figured out is that on my server, I had it set to check a shared folder on my workstation ever few minutes. Basically a watched folder share was causing it to not sleep. It sleeps like a baby now. I discovered/remembed it by pure luck. I was checking the Sessions folder under Computer Management and happen to see the Guest user jump on for a split second and right back off.

I just want to propose my solution. I have windows 7 32 bit home premium, and it turns out under advanced power options, sharing media, if you set it go to "Away mode" this prevents your computer from entering real sleep. So just change it and your fine.

Mine was caused by the same reason of watching a folder. When I upgraded to Windows 7 from vista yesterday, for whatever reason it decided to watch some folders. Luckily, I noticed it in the hidden icon in the taskbar and clicked the "Stop" button. Actually, on some other forum somebody mentioned about pending Windows update causing Windows to not sleep. Even though that has not been a problem in any of my other computers, I decided to check if anything was pending. As I scrolled over that icon, I decided to explore it and that turned out to be the issue :) ____________________________ OK Folks, that was 4 days ago, I may have celebrated too early. The computer goes to sleep, but will wake up frequently with power led's and fans on. But the display does not wake up. If I now press a key, the display wakes up as well. The powercfg /requests shows the active remote client sent requests message. I dunno what to do now :(

FYI, my issue ended up being the Line-In audio. I had enabled it when a friend brought his iPod over and just left it on. I went back into the audio Mixer, unchecked "Listen to this device" and now my PC sleeps just fine.