Secure CRT
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05-03-2023 01:33 AM
Hi everyone,
To all engineers who love cisco CLI, what is the possible solution to this below error
Key exchange failed.
No compatible MAC. The server supports these MACs: hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha2-256,hmac-sha2-512
Any possible solution will be appreciated.
kind Regards,
Michael
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05-03-2023 02:39 AM
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01-18-2024 05:51 AM
Hi Amutua 17
I had the same problem on the 9000 Series Switches, I don't know exactly why it gives this error but I just upgraded SCRT to version 9.5 and the equipment already appeared in the command line.
Hope this helps.
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05-03-2024 09:02 PM
Hi amutua17 and jonasmariquele19
Hi You will get these kind of errors in SecureCRT only not no Putty or teraterm try to login, In secureCRT you need to delete the ssh.ini file AppData\Roaming\VanDyke\Config and restart the SSH services
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05-09-2024 04:36 AM
this didn't resolve the poblem.

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09-11-2024 11:38 AM
Has anyone found the solution for this.
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09-11-2024 02:28 PM
Have you tried upgrading SCRT to current version?
Rick
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09-19-2024 04:55 PM
1: Right click and go to properties of the IP address you are trying to ssh to
2: Click ssh2 and go to Advanced below.. on the right you have two that shows Cipher and and below that MAC. Under MAC look for SHA2-512-EtM and SHA2-256-EtM and check them.
3: Then hit OK and then try it should work.
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10-01-2024 01:10 AM
@senthilr Thanks, your solution solved the issue
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10-14-2024 07:05 AM
Thanks, it worked.
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02-19-2025 03:25 AM
Thanks @senthilr ! I had the same issue and it's fixed by this solution.
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09-30-2024 07:13 PM
Thanks this worked

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09-30-2024 07:23 PM
Updating the version helped.
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10-15-2024 11:14 AM
I needed to upgrade SecureCRT to version 9.5.2 to make it work otherwise it won't work.
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10-15-2024 01:10 PM
Thanks for sharing your experience with this issue.
Rick
