I was viewing the device manager earlier today and noticed that there is a device titled isatap.{7D64BD15-AF97-4F54-896C-AFCC643B3D14} listed under network adapters that is not working properly. I am running Vista RC1 5600 and have not installed any new devices. The properties window for this item lists Microsoft as the manufacturer and the statusshows; "This device is not working properly because Windows cannot load the drivers required for this device. (Code 31)". I attempted to update the driver by searching Windows Update and my hard drive but had no success. I haven't noticed any changes in performance. Also,my nic and wifi connect perfectly. Any info would be greatlyappreciated.

See my post a couple days ago titled "ISATAP Problem". I have the identical problem as you. So far I have not received an answer, either from this forum or Microsoft (submitted a bug report).I did receive an answer from the Networking newsgroupwhich I quote below. > The Internet/Site Automatic Tunnel Addressing Protocol (ISATAP)> connects IPv6 hosts/routers over IPv4 networks. ISATAP views the IPv4> network as a link layer for IPv6 and views other nodes on the network> as potential IPv6 hosts/routers. ISATAP supports automatic tunneling> and a tunnel interface management abstraction similar to the Non-> Broadcast, Multiple Access (NBMA) and ATM Permanent/Switched Virtual> Circuit (PVC/SVC) models.> Copyright (C) The Internet Society (2004). All Rights Reserved. >Basically it's installed with the os.>IPv6 is on in Vista by default-you can turn it off though .>Go here,>Control Panel\Network and Internet\Network Connections>right click your network card>properties>uncheck the IPv6 box>that'll turn off IPv6-then just disable the adapter driver>That's if it's causing you issues,When I tried the above (disabling IPv6), IE got a little flaky with slow connections and random errors, so I re-enabled IPv6 and IE returned to normal. Like you, I don't notice any other problems except for the annoying yellow exclamation point in Device Manager. Good to know that it just isn't my computer; maybe with two of us having the same problem, someone will give us somehelp. If you hear anything or figure it out,please let me know.

Thanks hasheran, I appreciate the info. I don't see hownetworking configuration could be linked to Windows failing to load drivers properly. I suppose it's neither here nor there seeing as how Vista will be retail shortly. Oh well, if you hear anything else let me know.

I have the same problem as you.My connection now is very slow. I have an ADSL 1024/192 Kbps, and now is only 48/153 Kps (Speakeasy Speed Test).Any news, let me know