Huawei dongle keeps on disconnecting when idle. How do I stop this?

12.04 mobile-broadband huawei

8,720

Solution 1

You can try changing the state of your mobile broadband from the Tunables tab.

As the Powertop web site doesn't have any useful documentation, I was unable to find any concrete answers. However, you can have a look at the website: http://www.lesswatts.org/projects/powertop/

Some more links:

http://www.admin-magazine.com/Articles/PowerTOP

Solution 2

A temporary solution would be to prevent the internet connection from idling with a simple script.
Create file /etc/cron.d/ping

# /etc/cron.d/ping
# ping every one minute
* * * * * nobody ping -c 1 -W 10 -q www.google.com >/dev/null 2>&1

8,720

Mysterio

Updated on June 30, 2022

Comments

Mysterio less than a minute

I have a Huawei E172 USB dongle that works perfectly with Precise. However it keeps on disconnecting the internet connection when I'm not doing anything that requires internet connection. I think it has to do with Powertop tunables. I have turned so many things off in this section. Here is the list of the things I turned off:
- January almost 10 years
  
  I think that you enabled autosuspend for USB while relying on USB for your internet connection :-) I don't use powertop, because I lack a deep understanding of what it actually does.
- Mysterio almost 10 years
  
  I have now turned off autosuspend for anything 'USB' related to see if that will stop this. I'll report back if this is successful
- Mysterio almost 10 years
  
  Indeed not turning things related to 'USB' solves the issue of disconnection
Mysterio almost 10 years

You are so right about the lack of documentation with regards to Powertop