Aruba Instant 18.104.22.168_3.2.0
The Terminal Access option in Aruba Instant 22.214.171.124_3.2.0 release will only accept client connecting using SSH. The Telnet connection is depreciated from this version onward.
This option is disabled by default. To enable, perform the following steps:
1. Settings > Show Advanced options > Terminal access
2. Select Enabled
3. Click OK
Data transfer between the client and the Instant AP (IAP) using SSH are encrypted, thus its provide better data security comparing to Telnet. Note that the SSH connection should only be used for advance diagnostics, configuration through the CLI is not officially supported.