At present, the latest version of AISPer already supports iOS 17 positioning, you can click "Check for Updates" in the lower right corner of the AISassistant client to ensure that you can use the positioning function after updating to the latest version.
If a 303 error occurs when using the positioning function of AIS-Assistant (as shown in the figure below), it is usually caused by the incompatibility of the installed drivers of other positioning software (such as ianygo). You need to uninstall the corresponding driver and try to locate it again.
Go to "Computer Management" - "Device Manager" - "Network Adapters" to view the installed drivers and uninstall the incompatible drivers.
In the first case, if you see an item that is displayed as blank:
Please go to the "Advanced Network Settings" of your computer to check if there is a network that is displayed as "Tenorshare TSNCMdevice", if so, you need to uninstall the blank driver in the above figure, if not, do not uninstall.
Second case: If you see an item named "Tenorshare TSNCMdevice" in the Network Adapter, you can uninstall it directly.
To uninstall the above drivers: Use the right mouse button to click and select "Uninstall the device", a pop-up prompt will appear when uninstalling, please check the option in front of "Try to remove the driver of this device" in the pop-up window, and then uninstall it.
Once the uninstallation is complete, plug your phone back into use the positioning function in the AIS Assistant Toolbox.