Background info: I have a TMobile phone with 3G tethering, which always worked without a problem until a few months ago, I didn’t notice at first because it’s a slower backup connection in case my WIFI is down. I first assumed the phone was the problem, BUT it tethers with my laptop without any problem. Therefore, I assume the problem is with my Manjaro desktop PC.
Problem: When it’s working correctly, I plug in the phone and it shows “Wired Connection 2.” But it hasn’t worked in weeks. When I plug in the phone, nothing happens in network manager. I also tried “nmcli device show” and “ifconfig -a” and as far as I can tell nothing changes when I plug in the phone via USB.
PS: It’s definitely not my phone plan (I asked TMobile.) And like I said, it connects to my laptop.
[741148.722306] usb 4-1.3: new high-speed USB device number 49 using ehci-pci
[741148.824561] usb 4-1.3: New USB device found, idVendor=04e8, idProduct=6860, bcdDevice= 4.00
[741148.824569] usb 4-1.3: New USB device strings: Mfr=7, Product=8, SerialNumber=9
[741148.824574] usb 4-1.3: Product: SAMSUNG_Android
[741148.824577] usb 4-1.3: Manufacturer: SAMSUNG
[741148.824581] usb 4-1.3: SerialNumber: xxxxxxxxxxxxxxxx
[741153.841981] usb 4-1.3: reset high-speed USB device number 49 using ehci-pci
(FWIW: This is the point where I turn on tethering in Android…)
[741153.939809] usb 4-1.3: device firmware changed
[741153.940272] usb 4-1.3: USB disconnect, device number 49
[741154.151890] usb 4-1.3: new high-speed USB device number 50 using ehci-pci
[741154.252195] usb 4-1.3: New USB device found, idVendor=04e8, idProduct=6863, bcdDevice= 4.00
[741154.252202] usb 4-1.3: New USB device strings: Mfr=7, Product=8, SerialNumber=9
[741154.252207] usb 4-1.3: Product: SAMSUNG_Android
[741154.252211] usb 4-1.3: Manufacturer: SAMSUNG
[741154.252215] usb 4-1.3: SerialNumber: xxxxxxxxxxxxxxxx