Ok here is my situation. 3 PC's all running Windows 7 Ultimate 1 Desktop connection via wire to router 2 Laptops connected via Wireless (Linksys wrg54g) All 3 PC's are visible on all 3 PC's via the Homegroup in Windows Explorer. I can browse/copy/write files on all 3. All sweet. All 3 can print to the 2 Printers connected to the Desktop. Laptop A is configured to Backup using the Windows 7 Backup to the Desktop. This works fine. Laptop B however when trying to backup to the desktop I get an error message after I have selected the Drive in the setup screen and I've entered my username/password credentials The error code is 0x80070043 I've tried everything and I'm quite experienced. Both laptops for all intents and purposes are identical. Any help would be greatly appreciated.

Thanks for the post. First of all, Id like to inform you that the error "0x80070043" refers to ERROR_BAD_NET_NAME. You can try the following steps and see the result: 1. Start the Group Policy Object Editor (gpedit.msc). 2. Expand Local Computer Policy\Computer Configuration\Administrative Templates\System\logon. 3. In the results pane, right-click Always wait for the network at computer startup and logon, and then click Properties. 4. On the Setting tab, click Enabled, and then click OK. 5. Restart the workstation. Hope this helps!Sean Zhu - MSFT