Failing to download via http 1 out of 5 times.

[silver310]

Hi, I've set up an iPXE server, all file downloads are done via http.
The problem is that every 1 out of 5 times it'll fail to download the file, it'll show me an error "couldn't retrieve file" and reboot, if i try to boot it again it'll download the same file successfully (trying after 30 sec).

I don't know if this is an iPXE issue or a problem with my server.
I am running the latest version of iPXE on a Centos 7 server.

How can I file out where this problem is coming from?

Also, is it possible to return to the main menu after that kind of error?
In my menu.ipxe file i have
:some_entry
kernel some_kernel
initrd some_initrd.img
boot || goto failed

:failed
echo Booting failed, returning to main-menu
sleep 5
goto start

where start is my main-menu, but this doesn't work, it just reboots.

[SebastianRoth]

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"?

[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”."?

[danberk]

Hi! I put that in, I had a custom Apache Tomcat server serving files, and I was getting a error if I didnt set the content type manually.

[silver310]

(2015-12-11 21:42)danberk Wrote:  Hi! I put that in, I had a custom Apache Tomcat server serving files, and I was getting a error if I didnt set the content type manually.

Where do i configure this?

[danberk]

Which HTTP server are you using?

[silver310]

(2015-12-15 20:38)danberk Wrote:  Which HTTP server are you using?

Apache on Centos 7