I have been having a problem with my new cisco ASA 5505. In ftp, http and SMTP traffic I keep getting Reset-O. Then (especially with the HTTP file transfers we do) I get 1 or sometimes many Deny TCP (no connection).

I have a real hard time believing that all of these outside hosts are doing Resets - and then still trying to communicate.

Cisco is looking at a pcap now, and it does show retransmissions from our web server to the host.

Has anyone seen this kind of behavior before? Does anyone have any suggestions? Could it be that there is a faulty router at our ISP?

Everything works flawlessly inside of our network.


Bill O'Connell
Network Solutions Manager

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