The specified network name is no longer available

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This article/section is a stub — probably a pile of half-sorted notes and assertions some of which may well be wrong, and not verified as a whole. Feel free to add or refine.

This Windows error, most commonly received during network data copy, seems to be caused by the underlying network connection dropping, often for just a fraction of a second, sometimes more permanently.


Apparently, a common culprit is having a a duplex mismatch between networking ends: full duplex on one and and half on the other, particularly on direct network card-to-card connections where these settings can be forced, but also when the network card or switch is just dumb about autodetection.


Other possibilities seem to include:

  • bad drivers,
  • a bad hub/switch, (e.g. a cheap one that freezes up sometimes)
  • bad wireless connections,
  • a damaged cable


See also