On Fri, 8 Sep 2017, Johny Bravo via curl-library wrote:

> I perform curl_multi_perform in a background thread of my GUI app. I am
> downloading data from HTTPS server. Usually, all is working, however after
> internet connection is lost and restored again, I receive CURLE_COULDNT_
> RESOLVE_HOST and no new download is ever started again (the server is OK -
> if I stop app and start it again, all is working again until the connection
> lost)

That sounds like a name resolver problem. So maybe something needs to be
reset/reloaded when your internet connection has gone and come back.

If you try to call res_init() when you get CURLE_COULDNT_RESOLVE_HOST and then
call curl again, does it make any difference?

-- 
  / daniel.haxx.se
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