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2927ax poor performance with f/w 4.4.0

  • craigski
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30 Apr 2022 18:39 #1 by craigski
2927ax poor performance with f/w 4.4.0 was created by craigski
Just upgraded a 2927ax with the recent 4.4.0 firmware from draytek.com, did multiple speedtests only getting ~500Mbs.

Noticed CPU maxed to 80-90% on Draytek dashboard.

Rolled back to 4.3.2, speedtests back to normal, 900Mbs, CPU running at 1% during speedtest.

Hardware acceleration was turned on for NAT, same config on both tests.

Issue with 4.4.0, maybe specific to ax model?

I'll stay with 4.3.2 for moment.

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01 May 2022 03:45 #2 by kelfaur
Replied by kelfaur on topic Re: 2927ax poor performance with f/w 4.4.0
I'm running 2927Lac with v4.4.0 on gig virgin connection, still getting ~900mbps.

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  • craigski
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01 May 2022 14:37 #3 by craigski
Replied by craigski on topic Re: 2927ax poor performance with f/w 4.4.0
The ax vs ac is different hardware inside, as ax has limited features vs ac models.

Previously with 4.3.2 f/w there was two different versions, one for all models of 2927 except ax, and a specific 4.3.2 for ax:

https://draytek.co.uk/support/downloads/vigor-2927ax/send/1031-vigor-2927ax/2478-readme-v2927ax-432


I'm only seeing one version of 4.4.0 now, maybe a specific version ax will appear soon?

https://www.draytek.com.tw/ftp/Vigor2927/Firmware/v4.4.0/DrayTek_Vigor2927_V4.4.0_release-note.pdf

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02 May 2022 00:16 #4 by edinburgh
Replied by edinburgh on topic Re: 2927ax poor performance with f/w 4.4.0

craigski wrote:
The ax vs ac is different hardware inside, as ax has limited features vs ac models.

Previously with 4.3.2 f/w there was two different versions, one for all models of 2927 except ax, and a specific 4.3.2 for ax:

https://draytek.co.uk/support/downloads/vigor-2927ax/send/1031-vigor-2927ax/2478-readme-v2927ax-432


I'm only seeing one version of 4.4.0 now, maybe a specific version ax will appear soon?

https://www.draytek.com.tw/ftp/Vigor2927/Firmware/v4.4.0/DrayTek_Vigor2927_V4.4.0_release-note.pdf



That's such an informative post!

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  • iantoal
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03 May 2022 15:09 #5 by iantoal
Replied by iantoal on topic Re: 2927ax poor performance with f/w 4.4.0
I saw this with the early beta 4.4.0 firmware for the 2927ax. I reported it at the time and unfortunately the issue shipped in the final bits.

In my case I only see the cpu spikes when connecting through the LAN ports (via my wired 960 APs or otherwise). If I connect directly to the router WiFi I dont have this issue. If I disable the router WiFi the CPU issue goes away i.e. the client connecting through my wired APs or on my wired LAN are able to access the internet at full speed.

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  • craigski
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03 May 2022 18:26 #6 by craigski
Replied by craigski on topic Re: 2927ax poor performance with f/w 4.4.0
Thanks. All tests I performed were using LAN connection with WiFi disabled on the ax.

I get ~900Mbs on 4.3.2, but only 500-600Mbs using 4.4.0 on the ax with WiFi disabled.

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