Two 3G modems in linux - how to set it up?

Question

linux

Good afternoon!
If you connect modems separately, the connection goes fine, but if you connect two at once, then errors occur. They connect via a USB hub - maybe it's his fault?
[E] May 17 04:02:40 ndm: kernel: hub 1-1:1.0: cannot reset port 1 (err = -145).
[E] May 17 04:02:41 ndm: kernel: hub 1-1:1.0: cannot reset port 1 (err = -145).
[E] May 17 04:02:44 ndm: kernel: hub 1-1:1.0: Cannot enable port 1. Maybe the USB cable is bad?..
[E] May 17 04:02:45 ndm: kernel: hub 1-1:1.0: cannot disable port 1 (err = -145).
[E] May 17 04:02:46 ndm: kernel: hub 1-1:1.0: cannot reset port 1 (err = -145).
[E] May 17 04:03:09 ndm: kernel: hub 1-1:1.0: hub_port_status failed (err = -145).

Answer 1

Is the hub active? Maybe the modems are not getting enough power?

Answer 2

That's right, the food problem! At 4 amps, find an active usb hub (Dlink DUB-1340)

Answer 3

Have you yourself tried to connect them past the hub and see what's in the console?