Setting up MangOH Red as Router to Cellular Gateway

have you put back pin 7 to normal position?

yes I just did, then I tried to re-flash the firmware and that was successful, however the mangoh red is still not showing up on the usb port (image below)

what did you see in dmesg?

There is quite a bit, I have attached a .txt file with what I get after dmesg, I am not too sure what I am looking for in this… I see alot of USB 1-3 having some indication that it see’s sierra wireless device but no clue as to what its indicative of
dmesg (108.6 KB)

A few rows up from the bottom I see this in bold

, I do not think this is the cause for the PC not seeing mangoh red on the usb port.

These lines show the ECM interface is established:
[ 7475.181577] cdc_ether 1-3:1.19 usb0: register ‘cdc_ether’ at usb-0000:00:14.0-3, CDC Ethernet Device, 8e:1e:1c:fd:c9:c7

[ 7475.215951] cdc_ether 1-3:1.19 enp0s20f0u3i19: renamed from usb0

you can try:
sudo ifconfig enp0s20f0u3i19 up
sudo ifconfig enp0s20f0u3i19 192.168.2.3
ping 192.168.2.2

WHOA…what just happened… it worked!!! Thank you so much :smile:

I will try to ssh into

:frowning: ssh is not occuring, man… do you know what might be causing this problem?

sudo ip route add 192.168.2.2 via 192.168.2.3 dev enp0s20f0u3i19
ssh root@192.168.2.2

hmm, I am getting a strange error saying nexthop has an invalid gateway

Suggest you using other linux PC or VM player to test

Hmm, I am currently without another. is there anyway I can wipe the wp7702 entirely and start from scratch?

do you have the UART2 console?
If yes, you don’t need to use USB ECM SSH to have the console.

Okay, I did type
dconf reset -f /

This reset ubuntu back to a default state, which gives me the idea that the problem may have been created when trying to setup the ethernet communication. Not too sure what happened, but I am now able to ssh into the device

I do not see CN305, I checked the schematic and it is not listed there either. I do have CN304 which is the USB host

CN305 is the UART console, it is just beside the CN304 USB connector.

i guess there is not one, there is only a reset button, and an audio port on either side of the USB connector.

I tried to re-ssh into the mangoh this morning and it is having the same problem again. I thought the OS reset helped restore the pc’s default settings, but I guess not. for some reason it started working earlier now its doing the same thing, not connecting, PC is not seeing the mangoh red.

probably this is caused by the network manager or modem manager of your Linux PC.
You can try to disable them.

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I disabled modem manager using several different commands

sudo apt-get remove -y modemmanager
systemctl disable ModemManager.service
systemctl stop ModemManager.service
sudo apt-get purge modemmanager

It appears that is disabled, however ssh is still not working. I can’t seem to find any answer in the forums