Joined: 08 May 2018 Posts: 14208 Location: Texas, USA
Posted: Wed Mar 17, 2021 11:29 Post subject: New Build - 03/17/2021 - r46069
[WARNING]: This thread is only for feedback on this beta release for developers and the community's benefit.
DO NOT flash this beta release unless you understand the risks involved and device specificrecovery methods.
Avoid discussions! Create threads for questions, general problems or use search; this thread is not for support.
Please list router model & revision, operating & wireless mode(s) and exact filename/firmware image flashed.
Issues:
• Show us your findings with steps to reproduce, configuration, output, logs and important information below!
Important:
• For issues provide applicable info: 'dmesg', 'cat /tmp/var/log/messages', syslog, klog, serial, strace, tcpdump, wireshark etc.
• Any firewall NAT or WAN issues, show output: 'iptables -vnL', 'iptables -t nat -vnL', 'iptables -t mangle -vnL' and /tmp/.ipt file.
• Search SVN tickets & discuss in forum before opening. Before reporting: reset & manually set up, not restore from a backup.
• Please include operating & wireless modes (e.g. Gateway, Router, AP, CB, WDS, Mesh) & relevant configuration information.
Router Model / Version: Dlink DIR-882 A1
File: dlink-dir882-a1-webflash.bin
Firmware: DD-WRT v3.0-r46069 std (03/17/21)
Previous: DD-WRT v3.0-r45928 std (03/06/21)
Reset: NO
Mode: AP
Uptime: ~ few hours
Status: working
Services: Openvpn client, DLNA, SAMBA, PPPOE
Issues / Errors: None
Still the issue of TX throughput being one third of RX's (Slow Download vs good upload throughput on clients). Test between 2015 Macbook pro as client and rooter as iperf3 server.
Similar issue with tests on iphone Xs, Xiaomi Redmi Note 8 Pro and Windows10 i7 8th generation Computer (clients)
Everything seems to work ok after 24h of testing. I had slightly better results in iperf3 after switching from channel 149 to channel 44 (4 streams, 5Ghz band). I don't know if it makes sense, but it seems to be the case after multiple tests (there is no 5Ghz used channel in my neighbourhood).
What i find strange, is that while the connexion is established at 1300 mbps if i check wifi settings, i find with network tool a maximum of 304,2 mbps. The latter may be the Rx Limit while the first number is the Tx rate ? (from client perspective)
We can also observe that sent packets are much higher than received packets
Well the screenshots are hard to decipher if you don't know the french language.
But why long puzzle... the RX TX rates are in the WebIF of the router in the tab Status > WLAN > Clients
in another screenshot i saw that you have set DTIM 1 at a beacon interval of 100
is that how it should be ?
at a beacon of 100 is DTIM 2 standard
Well the screenshots are hard to decipher if you don't know the french language.
But why long puzzle... the RX TX rates are in the WebIF of the router in the tab Status > WLAN > Clients
in another screenshot i saw that you have set DTIM 1 at a beacon interval of 100
is that how it should be ?
at a beacon of 100 is DTIM 2 standard
Thanks for your answer ho1Aetoo, here is the sceenshot, but the rates varies often, +- few hundred mbps. Rx more stable that Tx usually.
For Dtim, i tried 1 because with defaut 2 i still had the issue and saw on wiki that 1 was fine. In fact it didn't really make difference.
It seems to me that, no matter what interface says, Tx is under 300 Mbps limit (from router perspective). Like "N" rates, not sure if AC only setting will solve that, as tried it already i think
with one AP per radio beacon 100 + DTIM 2
with one AP + several VAP's beacon 200-300 + DTIM 1
a beacon of 100 + DTIM 1 definitely (uselessly) increases the WLAN overhead, so every 50ms beacon frames are sent (which you don't need)
You have to watch the RX TX rates in the router during the speed test.
I changed DTIM back to 2, good result for Rx rates as usual and same 300 mbps limit for Tx. I always watch rates during testing, and only launch test when they are settled and stable.
Sorry for the bad english, i hope that my explanations remain understandable
I don't know much about Broadcom and mediatek chipsets...
Have a look in your Mac Book in the WLAN settings, if there is something like Power Save or Power Management (this should be deactivated if available).
There are several power saving techniques that could cause problems.
Power management or spatial multiplex power save would come to my mind
I had similar Tx rates issue with Xiaomi redmi note pro 8 phone and with 8th generation i7 PC but i'm not sure what chipset they have. Will also check that.
Joined: 08 May 2018 Posts: 14208 Location: Texas, USA
Posted: Fri Mar 19, 2021 11:52 Post subject:
There is no direct way to do any of that in MacOS, the only hardware tweak you can do for the wireless is MTU. I don't know of any command line or other hack voodoo to tweak much else. And it looks like we're trying to run with 5GHz band. Couple that with the Mac being Broadcom and the AP being MediaTek, it is what it is. _________________ "Life is but a fleeting moment, a vapor that vanishes quickly; All is vanity"
Contribute To DD-WRT Pogo - A minimal level of ability is expected and needed... DD-WRT Releases 2023 (PolitePol)
DD-WRT Releases 2023 (RSS Everything)
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Linux User #377467 counter.li.org / linuxcounter.net
Thanks for your answer ho1Aetoo, here is the sceenshot, but the rates varies often, +- few hundred mbps. Rx more stable that Tx usually.
It seems to me that, no matter what interface says, Tx is under 300 Mbps limit (from router perspective). Like "N" rates, not sure if AC only setting will solve that, as tried it already i think
To come back to it, you would have to know the exact rates (router + client side)
The exact bitrates tell you which modulation and how many spatial streams (antennas) are used
The Broadcom card has 3 antennas, but it is not said that 3x3 MIMO works stable.
Thanks for your answer ho1Aetoo, here is the sceenshot, but the rates varies often, +- few hundred mbps. Rx more stable that Tx usually.
It seems to me that, no matter what interface says, Tx is under 300 Mbps limit (from router perspective). Like "N" rates, not sure if AC only setting will solve that, as tried it already i think
To come back to it, you would have to know the exact rates (router + client side)
The exact bitrates tell you which modulation and how many spatial streams (antennas) are used
The Broadcom card has 3 antennas, but it is not said that 3x3 MIMO works stable.
