I was upgrading my 5520 ASA to the latest security patch for 8.2 via Solarwinds TFTP Server. Every time I upload the IOS, it will time out and cancel the process.

As an alternative to the “copy tftp: flash:” command, I used the following wich worked like a charm:

copy FTP: Disk0:

Lesson Learnt:: whenever upgrading IOS and has issue with TFTP… use FTP: instead.

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