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I've been having wifi connection issues since upgrade to ROS 2 Humble. The connection will mostly work, but then drop for some period of time.

I'm posting this "question" and answer here in case others have issues.

It might NOT be related to ROS 2, DDS, or Humble at all.

https://askubuntu.com/questions/1403954/wifi-issues-in-ubuntu-22-04lts https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1967842


Originally posted by dcconner on ROS Answers with karma: 476 on 2022-06-03

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Original comments

Comment by dcconner on 2022-06-03:
I'm seeing issues using Ubuntu 22.04 with kernel 5.15.0-33-generic with Intel NUC w/ Intel 8260 wireless on robot, and desktop connected to NetGear R7000

Comment by gvdhoorn on 2022-06-04:
I'd suggest posting your edit as an answer.

Comment by dcconner on 2022-06-07:
I will post answer once we are finished testing. In the mean time, this fix seems to have improved wifi:

I disabled Wi-Fi power management directly by editing: sudo nano /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf Then changed the value from 3 to 2, saved changes and rebooted.

Still need to do more stress testing with ROS 2 specific code before I say its the "answer".

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Disabling power save seemed to fix issues. I have not reverted with latest kernel updates to see if fixed in standard kernel, but disabling power save fixed issues I was having.


Originally posted by dcconner with karma: 476 on 2023-03-09

This answer was ACCEPTED on the original site

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