openwrt / openwrt/mt76

mt7615: slow AC wireless speed on Linksys EA8100-AH

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#349 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

Hi, I am trying to add support for Linksys EA8100-AH (MT7621 soc with dual MT7615N)
The AC speed is about 50~150Mbps when connected to Oneplus 6, but the original firmware can do around 350Mbps (Tested on Channel 36)
Thanks!
Seems like this is the same issue when I try to add support for Linksys EA7500-V2 (#305 )

I noticed that in LUCI, Network -> Wireless -> Associated Stations, it is only showing

RX Rate / TX Rate
6.0 Mbit/s, 20MHz
585.1 Mbit/s, 80MHz, VHT-MCS 6, VHT-NSS 2, Short GI

it this normal?

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 AC-speed comparison on the Linksys EA8100-AH, using channel 36, and inspect the LuCI Network → Wireless → Associated Stations RX/TX rates. Compare the behavior with issue #305 and the original-firmware result; done means the cause of the 50–150 Mbps throughput is identified and the driver behavior is corrected or documented.

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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