On 08/14/2013 01:58 PM, Dan Williams wrote: snip > The 4G part of the 250U is a Beceem WiMAX chip, for which there are no > drivers on Linux at this time. The 4G parts are used with a > pseudo-ethernet interface, but since there aren't any kernel drivers, > that's not going to work. The 4G parts do not use PPP. The 3G part, > however, *does* use PPP over the serial ports. So with this > information, it's not surprising that when you choose "4G Only" in > Windows, the 3G part (eg, PPP over serial ports) isn't going to work > on Linux. Dan Yes, but if we knew 1) to Identify that 4G has been set, and 2) the command to toggle the device from 4G-3G, then this problem could be identified by the driver and the unit switched back to 3G and a log message printed. Then, the issue would be avoided, right? -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html