MT7622/MT7915E Slow 802.11ax speeds
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- Dominant language
- C
- Stars
- 888
- Forks
- 436
- PR merge metrics
- No merged PRs in 30d
Description
OpenWrt on MT7622/MT7915E (MT7911AN) devices has issues with 802.11ax@5Ghz performance (specially upload speeds) when the client device has an obstacle (such as a brick wall) in between. In this situation 802.11ax performance degrades severely, while 802.11ac in the same situation has a much better performance. This issue has been reported by Redmi AX6S and Belkin RT3200 users with 22.03.x builds and also with master/nightly builds. More details in the OpenWrt forum at https://forum.openwrt.org/t/802-11ax-worse-than-802-11ac-with-mt76-driver/126466/1 including test results and how to reproduce.
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the MT76 driver behavior on MT7622/MT7915E and follow the reproduction details and test results in the linked OpenWrt forum thread. Reproduce the 802.11ax 5 GHz test with an obstacle, comparing upload and overall performance against 802.11ac. Done means the severe ax degradation is resolved or its cause is identified with a verified driver-level fix.
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
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100