|  | Ambiguous or incomplete command |  | 
| All configured authentication methods failed | Authentication error | Unable to authenticate to the destination host. | 
| Authentication failed | Authentication error | Unable to authenticate to the destination host. | 
| Authentication failed - login prompt appeared again | Authentication error | Unable to authenticate to the destination host. | 
| Command "enable" authorization failed, tried 2x | Command authorization failure | The command wasn’t authorized. Increase command authorization failure retries or increase the timer value (ms). | 
|  | Command not executed for prevented reasons | Excluded for specific reason (bug with specific). | 
|  | Command result mapping failure |  | 
| SSH client not received any data for last 120000 ms! cmd => show vrrp \| e #^$ | Command timeout | The command timed out. Increase device session timeout. | 
| Can't detect prompt | Command timeout | Unable to detect CLI prompt. Increase network device login timeout. | 
| connect ETIMEDOUT XX.XX.XX.XX:22 | Connection error | Received no response from the destination. | 
| connect ECONNREFUSED XX.XX.XX.XX:22 | Connection error | The connection to the destination is being blocked by an access list or firewall. | 
|  | Fatal error | Contact the Support team. | 
|  | Invalid command |  | 
|  | No credentials provided |  | 
|  | Parsing command failure |  | 
|  | Parsing failures (per command) |  | 
|  | Possible device issue (during command mapping) |  | 
|  | Possible device issue (during parsing) |  | 
|  | Possible device issue (during task mapping) |  | 
|  | Request failed |  | 
|  | Result mapping failures (per command) |  | 
|  | Result mapping failures (per task) |  | 
|  | SSH credentials requires username |  | 
|  | Task result mapping failure | tasks/sn Error: Can't find sn for IOS-XR: missing information, command did not provide the expected result. | 
|  | Unknown device version |  | 
|  | Unspecified command |  | 
|  | Unsupported device | This device is not yet supported by IP Fabric. |