We are having a bit of an issue that I thought I'd run by the community.
We have an ASA 5510 and we are running the "Anti-X" module with it. It is the Antivirus/Antispyware Interscan Module from Trend Micro. At any rate, we fond that when we try to download things via FTP, the download takes an extremely long period of time and often fails before it times out. By disabling the FTP scanning, it resolves the issue.
Has anyone else dealt with this? Any tips? We upgraded the engine as well as the virus definitions.
Did you guys enable "deferred scanning"?
If not, please try it to see if it makes any difference.