Posted: Thu Sep 16, 2021 22:47 Post subject: iPhone 12 loses connection to 5GHz, seems fine on 2.4 GHz
Hello,
Based on prior posts, I've set
tcp_tw_recycle = 0 and
tcp_tw_reuse = 0
While waking phone from sleep, I first see phone connected on 5G and then it changes over to wifi.
When default was 5GHz then most of the times, I'd have to manually connect to wifi, sometimes it would connect to wifi but many times it won't
For the past 24 hours, I've set 2.4GHz as default and even though coming out of sleep, I occasionally see 5G, phone switches to wifi on its own, have not had to manually set it to wifi.
Other than giving specifics on what your R7800's 5GHz radio settings are...? Those two variables have nothing to do with wi-fi connectivity, specifically. Just in case that was misunderstood. _________________ An old man said, “Erasers are made for those who make mistakes.” A youth replied, “Erasers are made for those who are willing to correct their mistakes!” Attitude matters! ~ Anonymous
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“You are always a student, never a master. You have to keep moving forward.” ~ Conrad Hall
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“Life is about moving on, accepting changes and looking forward to what makes you stronger and more complete.” ~ Anonymous
The debate over optimal settings has been had and obviously those settings do not work for your iPhone. It also looks as if the wiki has been updated for QCA wireless settings. _________________ An old man said, “Erasers are made for those who make mistakes.” A youth replied, “Erasers are made for those who are willing to correct their mistakes!” Attitude matters! ~ Anonymous
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“You are always a student, never a master. You have to keep moving forward.” ~ Conrad Hall
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“Life is about moving on, accepting changes and looking forward to what makes you stronger and more complete.” ~ Anonymous
Protection Mode
Recommended Setting: RTS/CTS* or None for AP modes, & RTS/CTS for client modes
RTS Threshold
Recommended Setting: Enable @ 2346 or Disable for AP modes, Enable (980 - 1500, or slightly lower if NEEDED) for client modes
And personally, I use BI of 100 and DTIM of 2-5. Because otherwise, you need to leave the DTIM at 1 IMHO. _________________ An old man said, “Erasers are made for those who make mistakes.” A youth replied, “Erasers are made for those who are willing to correct their mistakes!” Attitude matters! ~ Anonymous
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“You are always a student, never a master. You have to keep moving forward.” ~ Conrad Hall
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“Life is about moving on, accepting changes and looking forward to what makes you stronger and more complete.” ~ Anonymous
Joined: 21 Jan 2017 Posts: 1782 Location: Illinois Moderator
Posted: Sat Sep 18, 2021 14:45 Post subject:
1. Since you're in the USA use USA for the country and not Panama, you will see no gains in using another country because your iphone will be limited to US pwr restrictions back to the router. This is true of any phone/os in their respective country unless you've jailbroken or rooted your device to do something else (very unlikely for most users).
2. You've selected a weather radar channel and you're going to have shit performance in those bands. Use either 36 or 48 or 149 or 161.
3. Use airtime fairness or you risk that older/slower wifi devices will dominate the router's air time and suck up all the bandwidth.
1. Since you're in the USA use USA for the country and not Panama, you will see no gains in using another country because your iphone will be limited to US pwr restrictions back to the router. This is true of any phone/os in their respective country unless you've jailbroken or rooted your device to do something else (very unlikely for most users).
2. You've selected a weather radar channel and you're going to have shit performance in those bands. Use either 36 or 48 or 149 or 161.
3. Use airtime fairness or you risk that older/slower wifi devices will dominate the router's air time and suck up all the bandwidth.
Changing to USA
Enable Airtme fairness
getting terrible speeds on 149/161
will try 36/48.
Had good speed 400+ on 132 earlier
of course then only for the USA and not the rest of the world
Thanks, so I don't seem to be close to any TWDR on the list. I did try other channels and I get best speeds on 132.
Could it be that no one uses that channel in my neighborhood?
I set to USA and enabled Airtime Fairness but kept channel at 132. those are the only changes so far and speed seems to be good.
Now will try other changes one by one.
It seems that channel quality takes some time to improve after a change. I usually run a test half an hour after making changes. CQ starts at 60-70% and gradually increases to 90%
If you choose a clean channel and then start a very long throughput measurement, you can see how the channel quality drops
(the channels are busy) but not by others but by your own devices