tcp window scaling (rfc1323) problem

[Hooman Fazaeli]

Hi,

We connect to the Internet through a TCP proxy running on FreeBSD 8.3-RELEASE.
Everything works except that instagram clients frequently fail to get/refresh
some images and feeds. I have checked anything that may be the cause of problem
and found that setting net.inet.tcp.rfc1323 to zero improves the situation.

Googling a bit, I found out that there are reports about window scaling impl. bug
in older freebsds (i.e., https://lists.freebsd.org/pipermail/freebsd-hackers/2007-January/019070.html).

My question is that which version of freebsd is known to have the bug of
window scaling fixed? Is there any known problem related to window
scaling in newer (8+) freebsd versions?

Thanks in advance.


-- 
Best regards
Hooman Fazaeli