Hi On Wed, Jul 13, 2016 at 04:06:43PM -0000, Frank Miles wrote: > I have two jessie systems with kvm-qemu virtualized Windows7 guest OSs. > These are mostly working well (including guest inter-networking) to > the extent that I use Windows, with one glaring exception: when I try > to do a Windows Update - the process never finds anything to do, nor does > it ever terminate. Ordinary Windows systems (belonging to other users) > are finding lots of updates and fairly quickly. > > One of these is my home computer (Win7Pro); the other is my work computer > (Win7Enterprise). Both were afflicted approx the same time (not sure exactly > when, I use the Win7 guests less than once/wk).
Are they on the same network? > > I've talked to our network/user-systems techs/admins, and they haven't a > clue. They recommend their usual solution - full reinstall of Windows. > A hideous amount of time (ISTM) especially for my home system on a slow > internet feed. Since this is a problem in a windows VM (probably in a Debian host?), this is barely applicable to the list, but I'll bite... Sounds like general network gremlins... A couple of things that spring to mind: (1) Can the windows boxes ping e.g. 8.8.8.8 ? If not, then network connectivity is likely broken... (2) Can the windows boxes resolve names? E.g. ping www.google.com ? If not, then DNS resolution is borked... (3) IP address collisions: If two systems on the same network have the same IP address, then you will get inconsistent results... To see whether a box suffers from this, obtain it's IP address and disconnect it from the network. If the IP address is still pingable (or just arping'able), then this is a red flag... Hope this helps -- Karl E. Jorgensen