I have not seen this specific message before, however, I have had several flaky problems using a USB/RF interface adapter. A PCI/RF adapter works much better. If you are only a few inches away from your router, can you connect directly to it via copper?
Wireless router (BT Voyager 2000) on Broadband line.
Two computers; Laptop works trouble free from anywhere in or near to the building.
Desktop computer, situated a few inches away from the router, on start up shows the message:
There has been a network error. The update document is not available.
It is also necessary to tell the computer to connect to the network. Once connected then, all is well, signal is 100% and everything appears to be fine. There are no other networks running nearby.
Can anyone suggest what is amiss?