Hi, I have a question about using EM9191 in Ubuntu 20.04.3. I feel AT port will be blocked because I send “ati” command and the response doesn’t complete. How can I solve it ?

have you shut down modem manager? do you see problem in Ubuntu 18 or Ubuntu 16? Are you using the MBPL USB driver?

[image] jyijyi: the Hi @jyijyi , I disable NetworkManager by “sudo systemctl stop NetworkManager” and disable ModemManager by “sudo systemctl stop ModemManager” I don’t have Ubuntu 18 or 16. Yes, I use MBPL.

you can install ubuntu 18 with Virtual Machine within one hour

[image] jyijyi: Virtual Hi @jyijyi , Thanks for your reply. I just want to use Ubuntu 20.04.3 . Any other suggestions? Thanks.

no idea, i don’t see problem with Ubuntu 20.4.6, it might be some hardware or environment issue on your side

How about using these commands to disable modem manager? [image] Connecting through SSH in ubuntu native machine I am using a new machine running ubuntu 18.04 (while before I was running ubuntu on a VM) but I have noticed that the IP address for the USB connection to the…

Hi @jyijyi , Thanks for your help, I found that the problem is in the CPU.

Use EM9191 in ubuntu 20.04.3 with USB

IoT Modules

jyijyi November 11, 2023, 12:26pm 7

How about using these commands to disable modem manager?

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Use EM9191 in ubuntu 20.04.3 with USB

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