CISCO-CAPWAP-CONTROLLER Could not Discover WLC. Either IP address is not assigned or incorrect

So I have an established WLC 5508 that';s been runnign now for 266 days with 7 WAPs.  Today I received a new CA-1702i, plugged it in and it will not attach due to the error above.

BV1 is getting a correct IP (per the subnet it's on) assigned.  I do still have CISCO-CAPWAP-CONTROLLER with a correct dns entry and is pingable by other devices on the same subnet.
I'd rather not have to construct the DHCP60/43 options because I have existing waps that are not the same model on this subnet.

WTH is going on?
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Ben HartAsked:
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Craig BeckCommented:
What version of code do you have on the WLC?
Ben HartAuthor Commented:
Heh.. you beat me to it Craig.  The WLC has version 7, literally 3 minutes I read how the 1700 series WAP's want at least 8.0
Ben HartAuthor Commented:
So yeah AFAIK that's my problem.. I'd have thought I'd get some different error instead of not being able to find my WLC but I'm scheduled to upgrade the code tomorrow afternoon so we shall see.  I'll leave this question open just in case.
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Craig BeckCommented:

Let me know how it goes!
Ben HartAuthor Commented:
Well its not abandoned.. my scheduled downtime is Sunday.
Ben HartAuthor Commented:
Sorry it took so long.. but yes upgrading the FW on the controller to 8.x resolved the issue.  It was very neat too because it was down only the the reboot.

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Ben HartAuthor Commented:
Upgrading the firmware resolved the problem.
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