Master Repository Problem

[SnifeR]

Hello,
did anybody experience problem with updating from master repository? In log file I see this error while every from 3000 PC's trying to update:

20040203141609 I nahttp Callback called
20040203141609 I EPOServer Receiving PropsVersion from WAR24WST3112A
20040203141609 I nahttp Callback returned
20040203141609 I nahttp *** Server Callback took [ 0 ] secs for computer : WAR24WST3112A
20040203141609 W nan32tcp D:\BUILDAVOID\EPO\3.0.1\ENGLISH\SHIPPING\nanettcp\source\nan32tcp.cpp(2456) : WSAGetLastError 10053[0x2745]: WSAECONNABORTED
20040203141609 W nan32tcp
20040203141609 I EPOServer Package RequestProps for {F9450E49-90AE-4CFA-9DF5-8515A4BF2C66} sent
20040203141609 I nahttp Socket is getting closed
20040203141609 I nahttp Socket shutdown was made..waiting for other side ack
20040203141609 W nantcp32 socket error: 10053
20040203141609 I nahttp the other side socket is closed gracefully
20040203141609 I nahttp now calling close socket
20040203141609 I nahttp Socket is getting closed


20040203115701 I InetMgr Connecting to site = ePO_WAR30SRV0087A,
20040203115701 I InetMgr Connecting to ePO Server using NETBIOS name: WAR30SRV0087A
20040203115701 I InetMgr HTTP Session initialized
20040203115701 I InetMgr Connecting to HTTP Server in socket-mode
20040203115701 I InetMgr Connecting to Real Server: WAR30SRV0087A on port: 80
20040203115702 W InetMgr Host WAR30SRV0087A refused the connection on port 80
20040203115702 I InetMgr Uploading package to ePO Server...trial 1 / 6
20040203115702 I InetMgr Uploading file C:\Documents and Settings\All Users\Dane aplikacji\Network Associates\Common Framework\Unpack\pkg00127201945588390000_19763.spkg to ePO Server...

I'm lost, please: do ePo server need ISS-

http://WWW server

or ePo has his own

http://WWW server

because it's using 80 port? If not where can I change rights?

Best Regards
MaR