Hey,
This is been giving me a lot of issues, I tried HTTP/TFTP through the GUI via IP of the Aironet and those were all giving errors (Invalid file format, cannot find file etc...)
Now I am trying through Telnet (also tried through CLI via SSH but same error)
When I type the command archive download-sw /overwrite /reload tftp://location/image-name get an error:
examining image...
Loading c1140-k9w7-tar.152-4.JA1.tar from IP address (via BVI1): !
%Tar checksum error in fd 0
ERROR: Failed to extract from archive file tftp://ip/filename
archive download: takes 1 seconds
I contacted Cisco many times, they keep sending me the new firmware but whenever I download it...the MD5 checksum does not match up with the one on Cisco's website. I tried downloading it on multiple computers and different networks but the MD5 checksum of the file is always different from the one listed on Cisco's website.