Sanboot timeout 4cC8520 with Apache

[temp1007]

Hello Everybody,

I'm newbie of ipxe, pls help me for this issue:

I can sanboot with iso file in IIS 7.5 well but timeout error 4cC8520 with same that iso file over Apache24 (Apache and IIS hosted in same computer)
Although that iso file small, also test same error with other kind of file.
Anotherway, i still can http boot with that Apache server by other iPXE way as initrd =>boot for winpe.wim example.

When check Apache access LOG, it show HEAD command only, not GET command from client as IIS LOG

Check with Wireshark (from Apache/IIS computer) when have that error, there is one error:
===========
Acknowledgement number: Broken TCP. The acknowledge field is nonzero while the ACK flag is not set
============

So I suspect that ipxe tcp stack have issue with Apache, or i need adjust something in Apache configuration.

Any idea Pls help!
Thank You in advance!