Cant upgrade cisco wlan controller 2500 series software: error 10054 in system call recv An existing connection was forcibly closed by the remote host.

I am receiving the following message when I'm using tftp to attempt to upgrade my controller:

Connection received from 10.0.0.12 on port 7703 [26/09 20:49:49.846]
Read request for file <./AIR-CT2500-K9-7-5-102-0.aes>. Mode octet [26/09 20:49:49.846]
Using local port 51432 [26/09 20:49:49.846]
File <.\AIR-CT2500-K9-7-5-102-0.aes> : error 10054 in system call recv An existing connection was forcibly closed by the remote host. [26/09 20:49:49.908]

I have googled this error and can't really pinpoint what is wrong because the information I found doesn't have a similar theme, its like all the suggestions are very random?

anyway, i have posted a youtube video to show what i did.

http://www.youtube.com/watch?v=FeV1WCNe0Ag
janaelgAsked:
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Craig BeckCommented:
I'd guess that the outbound connection from the TFTP server to the WLC isn't allowed through the firewall.  We can see the incoming connection working fine so the inbound connection from the WLC to the laptop is good.

You could also try putting the firmware on a FTP server if you can't get the TFTP method working.  There are plenty of FTP sites on the net which could host the file for you to test.  As long as you give the WLC the correct gateway address (the router) you should be able to use an internet-based FTP service to pull the file from.
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janaelgAuthor Commented:
Ok, I'll try it this evening :-)
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janaelgAuthor Commented:
It worked!!!!!!!!! I have successfully upgraded my cisco wlan! thank you, thank you, thank you :-)
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janaelgAuthor Commented:
craigbeck really knows his stuff!!! he answered 2 questions for me that I have been trying to get answered from Cisco for about a month! OMG...i can't even begin to describe how happy I am that this is all over. lol.  thanks!!!!
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Craig BeckCommented:
Thanks for the kind comments!  My pleasure :-)
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