Failing to download via http 1 out of 5 times.

[silver310]

(2015-12-01 16:10)SebastianRoth Wrote:  Do you see the HTTP requests in your apache access log or possibly errors in apache error log when you see "couldn't retrieve file"?

When the download completes succesfully i see it in the logs, but when i get that error i don't see anything in the error log.

following the error code i got to this page http://ipxe.org/err/420c60
what does "content type" mean in "If you have a custom webserver giving out files, then as of August 17, 2015 builds of iPXE, you need to give out the content type of “text/plain”."?