openwrt / openwrt/mt76

mt7615e: VHT160 extremely high packet loss

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#465 10 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

As the title says, VHT160 appears to be more or less unusable on the mt7615e, to the point that even DHCP responses don't appear to get through.

It does appear to be running at VHT160 as far as the client and ap are concerned though.

Tested on: https://github.com/openwrt/mt76/commit/b22977c2727db7fea8d487573edb3aa668d8309d

There are a couple casual mentions of this on #432 as well

Not entirely sure what troubleshooting steps I should take here, as I only have 1 readily available 160mhz client to test with.

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 reproducing the VHT160 packet loss on mt7615e using the tested commit b22977c2727db7fea8d487573edb3aa668d8309d, then compare the related discussion in issue #432. Done means identifying and fixing the cause so VHT160 passes traffic reliably, including DHCP responses.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
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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