Odd web site behaviour using any browser in FC2 and FC3

[greg at gguldens.org]

I am a bit puzzled by this one and any help would be appreciated.

setup:
  FC system is firewall to Cable Modem and I use it for some browsing.
  FC system NATs internal network at home to address attached to cable modem.

Issue:
  When I use ANY browser from the FC system to go to www.galottery.com, the
server responds with a TCP reset and the connection is terminated.  While on
the FC system I have noticed that the TCP option flags CWR and ECN are set.

Using any browser on any system on internal network, including any browser on an
internal FC system, the connection is set up WITHOUT the CWR and ECN flags set. 
All these connections go through.


My issue:
  Is there some way to tell the FC system to not set these flags?  I have
attempted to discuss this with the webmaster at galottery.com and with a
technical team at their hosting provider.  Neither party was aware that the CWR
and ECN flags exist in the TCP headers so they were of no real use.  If I can't
tell FC to not set these flags, then I must always remember to use an internal
browser to get to this site.  So far, this is the only site I am having trouble
with.

Thanks in advance!

Greg Guldenschuh




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