0x80246005
SUS_E_DM_NONETWORK
Network connection was not available
There has been success with renaming the SoftwareDistribution folder:
Click Start, Choose Run.
In the Run box, type services.msc.
Click OK.
Right-click the Automatic Updates service.
Click Stop.
Stopping the service will take a moment.
Rename the "SoftwareDistribution" folder:
- Click Start, click Run, type: %systemroot%
Click OK. - Right-click the SoftwareDistribution folder, and then click Rename.
- Type SoftwareDistribution.old, and then press ENTER to rename this folder.
Click Start. Choose Run.
In the Run box, type services.msc.
Click OK.
Right-click the Automatic Updates service.
Click Start.
Starting the service will take a moment.
Try running the Updates again.
Always remember if in doubt, you can always copy the contents of the Datastore folder to another area on your hard drive as a backup.
You cannot install some updates or programs
http://support.microsoft.com/kb/822798