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Bizarre TCP (Not IP) Problem

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Pantman

IS-IT--Management
Aug 23, 2000
18
0
0
GB
Site has 128k leased line and Livingston?! router and can successfully connect to and browse most web sites- IP Routing, DNS, Firewall configuration etc. are therefore all working fine. Here's the bizarre part: Browsing to some websites (e.g. bt.com, cw.com) results in the 'Web-site found, waiting for reply' message to appear in the Browser and remain at this for ages, similarly users at these sites are unable to connect to the remote (i.e this site's) web server. This is not something simple to do with Browser configuration as I've tried multiple 'known-goods'. Packet tracing seems to suggest that the remote sites are sending premature 'FIN-ACKs': I'm thinking that it's something to do with TCP timeouts- anybody got any thoughts?

Much appreciated
 
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