ModemManager - connecting multiple modems simultaneously always fail

[Lars Melin]

On 9/28/2021 19:44, Lucas Pelegrino wrote:
> Thanks, Lars.
> 
> I looked up and found this 
> https://github.com/raspberrypi/firmware/issues/582 
> <https://github.com/raspberrypi/firmware/issues/582>
> 
> So I should be able to use up to 6 modems before I ran into this issue 
> if I'm not mistaken.
> 

You are comparing apples and oranges, your modem 1c9e:98ff has a total 
of 14 endpoints while the modem discussed in your link above has 5.
Your problem is an endpoint limitation, not a number of devices limitation.
Please read ALL the posts by user P33M there, especially the last ones.

Lars