Hi. I've got some observation about firmware version and speed that I would like to share. I have tp-link archer c5 with 'ath10k_pci 0000:01:00.0: qca988x hw2.0 target 0x4100016c chip_id 0x043202ff sub 0000:0000' running Openwrt. When I use firmware version 10.2.4.70.61-2 I get modulation speeds about twice as large as with other firmware versions. I've also tried 10.2.4.70.66 and firmware-5.bin_10.2.4-1.0-00033 and one that was Openwrt/Lede stock before that - all show performance noticeably worse than 10.2.4.70.61-2. In fact if my laptop stands on my desk (some distance away from AP) and I use 10.2.4.70.61-2 I get stable 2 spacial stream reception, if I use other versions mentioned above I usually get one 1 special stream as shown by 'iw' command on a client. I've also perfomed some speed measurements with iperf: * with latest firmware I get 30MB/s and iw on a client shows signal strength of -72dBm * with 10.2.4.70.61-2I get 53MB/s and iw on a client shows signal strength of -63dBm All with laptop (client) unmoved. So it looks like downgrading firmware gains 30+% performance. I've already tried to raise this question ~8 months ago but didn't get any reply. It seems like this is a bug in newer versions of firmware and it would be really nice if that bug could be fixed. Is there any way I can help with that? Maybe someone could provide me with better channel to ask these questions? Please let me know if I can provide any more information. Thanks! -- Martynov Nikolay. Email: mar.kolya@xxxxxxxxx
