Zitat von Ryan Beatty <ryan.bea...@gmail.com>:
Hello,I am still struggling with this. I have used wireshark to trace the session when uploading a file. In the trace it works fine for a while and then I get TCP DUP ack failures. Eventually the upload times out. When transferring from the xp machine on the same network, its all green, no issues, no failures as above. I have disabled autotuning of the connection in Windows 7 as per this page. http://8help.osu.edu/3253.html I have also played around with the mtu size, however , no joy. Does anyone know anything else I might be able to try?
The only occasion where i have seen something like this was with big-sized mail from a network using a comercial firewall with some advanced security feature enabled. This lead to a stall connection if SACK (selective Acknowledgement) where used at some point of backlog. As the remote side had no interest in finding out the root-cause this is all i can say about.
Regards Andreas
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