Here's a clip below from a DIY School Hearing aids (v2.2) PDF file named (Noahlink Wireless 2 – DIY User Guide); For other hearing aid programming devices (including Speedlink) install the fitting software first (before plugging in the hearing aid programming device) and that will install the driver. You can also read the same PDF file for driver troubleshooting help in case you did it backwards.
Noahlink Wireless Origin
GN ReSound’s Legacy AirLink 2, AKA/Noahlink Wireless was selected as the industry standard wireless programming device. Don’t ask whether to use Airlink 2 or Noahlink Wireless. You can use either. They are the same device. That is, a readily available firmware update will cause GN ReSound’s proprietary Legacy Airlink 2 device to become an industry standard Noahlink Wireless device. See this → Link.