When installing an access router in the boat I chose the Dovado Pro AC, Dovado Products. One thing was that it uses 12VDC and an other that it can connect to a neighboring 2.4/5GHz WiFi network via SpotBoost®
For many years we have used Telia, Sweden, as a broadband-supplier and for several years ago, as backup, we also got a Huawei E173 modem, which i would like to use with the router. For some months ago I phoned Telia suport since the modem no longer ”talked” to my Mac OS X 10.11, El Capitan. The supplied software didn’t work anymore. The answer from the support was that the support for this modem was terminated.
Despite their statement there is a working software called ”Mobile Partner” which seems ?? to work with all Huawei modems
Link to the software
Otherwise just Google "Huawei Mobile Partner"