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Alarm Details: "Failed to establish SSH connection with controller <ip_address> due to - Failure to authenticate"

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TitleAlarm Details: "Failed to establish SSH connection with controller <ip_address> due to - Failure to authenticate"
Symptoms
XMC logs alarm messages similar to the following: 
Alarm Details: "Failed to establish SSH connection with controller 10.0.2.22 due to - Failure to authenticate"

Wireless Manager fails to synchronize with wireless controller(s)
Controller Data Synchronization
- Status: Not Synchronized
- Detail: SSH failure to authenticate


 
Environment
  • Extreme Management Center (XMC)
  • Extreme Wireless Manager
  • ExtremeWireless (formerly known as IdentiFi)
  • XMC version 8.x
Cause
  • Mismatch configuration
  • The Login password field of CLI Credentials does not match those configured in the wireless controller, and/or.
  • The Enable password field of CLI Credentials does not match the credential configured in the wireless controller, and/or.
  • The Administrator password field of CLI Credentials does not match the credential configured in the wireless controller.
Resolution
  1. Identify profile assigned to the target wireless controller
    • Open the Netsight Wireless Manager
    • Go to Tools -> Authorization/Device Access
    • Click on Profile/Device Mapping tab
    • Locate the target device and select it. The profile in use is located under the Netsight Administrator column.
  2. Identify the CLI credentials associated with the profile you have identified via step 1 above.
    • Click on Profiles/Credentials tab in the top of the Authorization/Device Access window
    • Under Device Access Profiles list, locate and select the profile used for managing the target wireless controller
    • Click on Edit button to open the Edit Profile window
    • Memorize the CLI Credential in use.
  3. Edit CLI Credential
    • Click on CLI Credential
    • Locate and select the target CLI Credential you have identified via step 2
    • Click on Edit... button (the Edit CLI Credential window will pop up)
    • Click on the "Show passwords in clear text" checkbox to display the passwords in cleartext.
    • Make sure the information contained in the fields "User name:", "Login password:", "Enable password:", and "Configuration password:" matches the credentials of an user (with administrator rights) configured in the wireless controller(s) and that the SSH protocol is the selected choice for the "Type:" field. The Edit CLI Credential window should be similar to the sample below:
Edit CLI Credential Window
Please note that all field are filled with the same password. 
Additional notes
The image used in this article is for demonstration purpose only. 

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