openwrt / openwrt/mt76

TL MR3420 v5: Wifi lost at some time

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#472 6 comments 0 reactions 0 assignees View on GitHub

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Dominant language
C
Stars
888
Forks
436
PR merge metrics
No merged PRs in 30d

Description

Similar issues from the past: #188, #198

Since some upgrade half a year ago or so my MR3420-v5 isn't "on air" sooner or later.
I can still get in via cable; there's nothing interesting in the logread or dmesg output (no kernel crash or similar), but no clients can see the ESSID.

Rebooting or, as #198 states, changing the channel, makes Wifi come up again.

Is there something I can do to help debugging the issue? Currently I'm running r14808-499924adf0.

As the other tickets are closed I'm opening a new one.

Thank you!

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by comparing the behavior on the MR3420-v5 with the reports in #188 and #198, using logread and dmesg while the ESSID disappears. Check whether rebooting or changing the channel consistently restores WiFi; done means identifying the cause of the intermittent loss and documenting or validating a fix.

Written by the indexing model from the issue text.

Assessment

Tech stack
c, linux
Domain
networking
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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