Running opkg update on a NTP001:
root@NTP001:~# opkg update
Downloading https://opkg.teltonika-networks.com/7c0d265e9919e11a7d04c7b214dc268e033e27c6c66ff3d74202c92222b6dc9d/Packages.gz
*** Failed to download the package list from https://opkg.teltonika-networks.com/7c0d265e9919e11a7d04c7b214dc268e033e27c6c66ff3d74202c92222b6d
c9d/Packages.gz
Collected errors:
* opkg_download: Failed to download https://opkg.teltonika-networks.com/7c0d265e9919e11a7d04c7b214dc268e033e27c6c66ff3d74202c92222b6dc9d/Packages.gz, wget returned 8.
Putting the URL in a browser results in a 403 Forbidden error.