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Installing a License file on a Cisco Wireless controller

I'm trying to  install a license file via putty using the following command:
install tftp://ip of machine/file/license.lic but I'm getting an error no reply from TFTP server.
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Matt Minor
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Make sure that port 69 is open between the TFTP server and the WLC.
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Do I need to have TFTP installed and opened?
Yes. You'll need a TFTP server running on your system. Check out the free TFTP server from Solarwinds.

I used this exact software just last week in order to transfer a Cisco WLC config file via TFTP.
OK one more question.  I have the following:
150 licenses in use with no expiration date.
I have 150 inactive that are permanent does this mean I have 250 licenses?
I believe the 100 number would be "base" license - and the 150 are likely your "adder" licences. Adder licenses are what is required in order to increase AP count. (So you would be at 150).

This article will provide you with more detailed information on Cisco WLC licensing.
OK but what about the extra licenses not in use?  See attached.
The easiest way to tell what is ACTUALLY your licence count is to go into the GUI and click Software Activation--> Licenses.

That way you are sure how many APs your controller will support.
that's what I did see the attachment in the previous comment.  It says I have 150 in use and 100 inactive.  I wondering if they are inactive because I have 144 active AP's.
Sorry I was on my phone and the image didn't show what I needed to see.

That's exactly right, you have 250 total licences on that controller, and because you are using 144 APs. If you got to 150 or above, that second licence pack will activate.
thanks for the answers!
The chosen answer here is incorrect.  A license must be in use or it won't be used.

The WLC will show support for 150 APs on the Monitor page.  That is its TOTAL AP license count.
I researched this in more detail. Craigbeck is right - licences must be activated in order for the WLC to use them.

To easily get a number of currently supported APs, issue "show licence capacity" from the console. This will tell you how many APs you are licenced for. If you believe there is a discrepancy we can investigate further.

Thanks Craigbeck for the review. I will request points redistribution.
Cheers, Matt.

The monitor page on the WLC shows how many APs the WLC is licensed to support.  It's clearer than showing the license details.

At the CLI, use the show sysinfo command to see the same info.
OK I'm confused.... It says 150 current but I show an additional 100 that says Inactive with a permanent type and no expiry data.  So what is the 100 inactive mean?
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Craig Beck
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So when I reach the point of 150 I have to purchase more?
Thanks for clearing that up