Congestion detected warning

[lippit]

Our Wi-SUN network was running stable for several days. Since last night, a majority of devices suddenly disconnected and I see many of those messages in the log:
warning: congestion detected: dropping oldest packet
warning: frame spent 11 sec in MAC

Nothing has changed in the network configuration and the amount of data transmitted over the air should be relatively constant.

Any idea where that could come from?

[Kilio22]

Hi, thanks for the question!

For troubleshooting and general questions, the best channel is our Support team: Silicon Labs Support.
Please post your question on the Community website, and one of our Wi-SUN Applications Engineers will take your issue and follow up directly.

Thank you!

[lippit]

Thanks for the hint, I just did that!

Note that after restarting wsbrd, the warnings didn't show anymore and devices started re-connecting immediately. This made me think it could actually be an issue with wsbrd.

[Kilio22]

Awesome — thanks for the update, and for posting on Community!

Can you confirm this is your post? https://community.silabs.com/s/question/0D5Vm00000lAmi1KAC/wsbrd-congestion-detected-warning?language=en_US

Please include as many details as possible — such as the number of nodes, your wsbrd.conf, and a description of your test setup and procedure — so my colleagues can provide you with the best support.

If you confirm the linked post is yours, I’ll close this issue, and our Apps team will take it forward on the Community site.

[lippit]

Yes confirmed, that is my post.