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Hodders · 26-11-2004, 14:52

I've now been able to run a tcpdump on both the server and the client.

I can see the packets leaving my firewall but never arriving at the server until about 2 minutes later! The conclusion is that the FTP packets are being held up somewhere on the way. Given that access via ZEN adsl is fine, I can only conclude that ntlworld are delaying these packets somewhere on the way.

Running the login on a different client shows the packets working fine, ariving at the server and then being sent back and arriving at the client. So it seems to be sensitive to the NATed client ie the return port address.

Please help with any ideas !

26-11-2004, 14:52	#2
Hodders Inactive Join Date: May 2004 Posts: 18	Re: FTP uploads intermittently fails on NTL Broadband I've now been able to run a tcpdump on both the server and the client. I can see the packets leaving my firewall but never arriving at the server until about 2 minutes later! The conclusion is that the FTP packets are being held up somewhere on the way. Given that access via ZEN adsl is fine, I can only conclude that ntlworld are delaying these packets somewhere on the way. Running the login on a different client shows the packets working fine, ariving at the server and then being sent back and arriving at the client. So it seems to be sensitive to the NATed client ie the return port address. Please help with any ideas !