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i try to upgrade the software from 188.8.131.52 to 7.5.102
can we do it directly or we shoud upgrade gradually first from 6.0 to 7.0 then 7.5 ?
when we try from TFTP it give error [code file error disconnected- unknown error]
tru FTP error is [cont send replay disconnected]
Can you Help me Please
as per release nots of 7,5 version:
you can not direcly upgrade from 184.108.40.206 to 7.5.
First you need to pufarde to 7.0 or higher then you can go direcly to 7.5
Just to add..... You might want to consider going with v220.127.116.11 MR1 or v18.104.22.168 MR2 for stability. If you need to go to v7.5, only do so because of features.
Thanks, Scott Help out other by using the rating system and marking answered questions as "Answered"
addition to Sandeep & Scotts feedback,
When you do the upgrade, make sure your 5508 FUS also get upgraded to latest version 22.214.171.124. Here is the release notes for that
This process will take 30-40min & do this within a sufficient outage/maintenance window.
Here is the release notes for 126.96.36.199(7.4MR2) the one I would recommend
Also refer the compatibillity matrix to see which product it will support depending on the products that are available at your environment
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Thank you all for your support,
Actually it solved upgrade gradually from 6.0 to 7.0 then 7.5
Gald that u finally resolved ur problem.
Can you mark this question as answered, it may help others.
Dont forget to rate helpful posts
As per this table always come to 7.0.x software first and then upgrade to 188.8.131.52....
Also the procedure to upgrdae WLC is provided here at the below upgrade link:-