Pick the local network interface used for a manual connection¶

When connecting by IP across a VPN or routed network, AetherSDR lets you choose which local network interface (NIC) your computer uses to reach the radio. This matters when your machine has multiple network interfaces and the default route does not lead to the radio.

Before you start¶

You must know the radio's IP address. See Connect by IP across a VPN or routed network.
The ConnectionPanel must be visible. It appears automatically before a radio is connected, or open it via Settings > Connect to Radio....

Steps¶

In the ConnectionPanel, click Connect by IP to switch to the Manual mode page.
Enter the radio's IP address in the Radio IP address field. This value is saved as ManualRadioIp. If you have connected to this radio before, you can open the Radio IP address drop-down and select it from the list of recent addresses instead of typing it again.
Locate the Advanced: Source path combo box below the IP address field.
Open the combo box and select the local network interface you want to use for this connection. The selected interface is saved as ManualBindSource.
If the interface you saved previously is no longer available, a Source warning label appears beneath the combo box indicating the saved source is stale or unreachable. Select a currently available interface before proceeding.
Click Connect by IP to start the connection.

What each control does¶

Control	What it does	Persisted key
`Radio IP address`	The IP address or hostname of the radio to connect to. Displayed as an editable combo box; the drop-down lists up to three recently used addresses.	`ManualRadioIp`
`Advanced: Source path`	Selects the local NIC that AetherSDR binds to when opening the connection. Leave on the default automatic entry unless you need to force a specific interface.	`ManualBindSource`
`Use low bandwidth mode`	Reduces stream data rates for slow or congested links.	`LowBandwidthMode`
`Connect to last radio on start up`	When checked, AetherSDR auto-connects to the last used radio on startup and on broadcast-discovery / routed-radio probe. When unchecked, the connection dialog opens and the user must pick a radio manually each session. Defaults to checked.	`AutoConnectToLastRadio`
`Connect by IP` (button)	Starts the manual connection using the IP and source path configured above.	—

Tips¶

If the previously saved interface is unavailable, the Source warning label shows the saved interface name (or ID) and the last known IPv4 address. Choose a different interface from Advanced: Source path before connecting.
On a machine with only one network interface, the Advanced: Source path selection has no practical effect. It is most useful on machines with separate wired, wireless, and VPN interfaces.
If you are on a slow link such as a cellular or satellite connection, enable Use low bandwidth mode on the same page before clicking Connect by IP.
The Radio IP address field keeps the three most recently used addresses. Select a previous address from the drop-down to avoid retyping it.
If you uncheck Connect to last radio on start up, AetherSDR opens the connection dialog on every launch and waits for you to select a radio manually.
In v0.9.2.1 the SmartLink remote radios list has a fixed maximum height. If you have many remote radios, scroll within the list to reach entries that are not immediately visible.

Troubleshooting¶

Source warning label appears after selecting an interface — The interface saved in ManualBindSource is no longer present or has no active address. Open Advanced: Source path and select a currently available interface.
Connection fails immediately after clicking Connect by IP — The Manual result label below the button shows the error. Verify the IP in Radio IP address is reachable from the interface selected in Advanced: Source path. Use Network Diagnostics on the same page to check reachability.