Hi Everyone,
I have a NW6SP4 + BM3.7SP3 and BM37FP4C (no NAT, filters and so. Only pure
HTTP application proxy). I've tuned proxy according with tips #23 and #63
from Craig's web-site. Cache volume is traditional. All DNSes are up and
work fine. Current proxy.cfg file is:

[BM Cookie]
BM_Forward_Cookie=0

[Extra Configuration]
; Next entry fixes caching issue with multiple browsers on one PC
DonotCache4ContEncoding=1
; Next entry fixes problem browsing certain web sites
DoNotSendExtraCRLF=1
; Next entry fixes problem browsing certain web sites
EnableIncomplete302ResponseFix=0
DoNotCacheWhenCookieFound=1
EnableICSPassThruFix=1
TurnOffPersistantPassThru=1
TransparentProxySupportsVirtualServers=1
; Safe unload proxy
ResBadAddressLoopBreak=1
; Safe unload proxy
SCacheDestroyYieldInterval=200
; Open PDF in IE 5.5
PassContentLength=1
; Stream media like UBS Swiskey
;EnableNoCachePassThru=1
; 404 Page cannot be displayed
TreatLeftArrowAsHeaderBodySeparator=1
; 504 Gateway timeout
AckWithNoDataOnSYN=1
; Unload proxy without saving cache memory to disk
DoNotSaveMemoryCacheDuringUnload=1
; Disable Virus Scanning
ScanVirusPatterns=0
(standart part omited)

But the users still have "404 page not found" and "502 Bad Gateway". This
happens only occassionly and sometimes with different sites. If the users
go to page again then it is fine, then sometimes they have to go to the
page a few times before gaining access. Also if the users access this
pages via MS Proxy - everything is always fine.

If I place DoNotSendBadGatewayErrorPageToClients=1 to proxy.cfg then users
receive "Page cannot be displayed", but it's not the solution. This page
can be accessed via MS proxy.

Rings any bell?
Sincerely Yours,
Ilya Genkin