Database Users

Will 5ghz help me?

I recently got a galaxy tab and thought it would make a great interface for playing music at home.
Most of my music is on my PC and i manage to access it via cifs and it plays fine over WiFI.
I also have a home cinema system that will accept music via bluetooth, so If i have music stored on the tablet it comes out the home cinema speakers great.
Now my problem is that when I use the tablet to play music via the WiFI and bluetooth simultaniously it cuts out and stutters.
Futher reading shows that bluetooth operates over similar frequency range 2.4ghz as wifi. But unlike wifi it has no channel but hops over all channels all the time. so it not possible to select different channels to avoid the interfearance. This I think is my problem.
The Tablet does have the option for 5ghz but sadly my N router is only 2.4 and not dual channel, so i was wondering if anyone has experiance of this or thinks that moving to a dual band router will benefit me?
Thanks

Grab "wifi analyzer" from the market and post back your signal strength in dbm where the connection drops out.
I personally had a wall in my house that seriously impaired the wireless signal so I purchased 2 homeplugs, I guess you're in the states so
http://www.google.com/products/cata...X&ei=DhPiTsHsI4SE8gOB_b2HBA&ved=0CIoBEPMCMAE#
Then a cheap access point where you want the boosted signal
http://www.google.com/products/cata...X&ei=VRPiTsDXJNGm8gPIhaWDBA&ved=0CKsBEPMCMAM#

Wifi analyser show the signa almost at max (-40bd) though it does drop down when the music cuts out (down to -50 which is still in the green band)
I tried moving the router / sound system and tablet into the same room to eliminate signal loss due to obstructions like walls but still the problem persists.
I think either the chipset in the Galaxy tablet cannot cope with the bandwidth requirement of recieving a music stream via wifi and simultaiously outputing it via bluetooth or that the wifi and bluetooth are interfering with eachother.
Any ideas how i could determin if either of these is the cause?
thanks
rumple

With that sort of signal it does seem rather strange, a new router almost certainly wouldn't sort that out at that signal level.
Music streams usually have very low bandwidth requirements like KB/s
I would say the issue is quite probably on the bluetooth side of it.
Perhaps try changing the channel of the wireless in your router, beyond that... maybe someone else has an opinion

Bluetooth operates on a different frequency it wouldn't be interfering with the wifi signal especially on a 5ghz spectrum.
Sent from my Touchpad using xda premium

Wikipedia
Bluetooth uses a radio technology called frequency-hopping spread spectrum, which chops up the data being sent and transmits chunks of it on up to 79 bands (1 MHz each; centered from 2402 to 2480 MHz) in the range 2,400-2,483.5 MHz (allowing for guard bands). This range is in the globally unlicensed Industrial, Scientific and Medical (ISM) 2.4 GHz short-range radio frequency band.
And he's using 2.4ghz Wifi
Unlikely that is the problem but worth ruling out no?

I don't think its the amount of bandwidth from the music, I tried running even irc on wifi then using Bluetooth keyboard and it cuts out wifi, however on cell data it works fine. Also I have a dual band router and got the same effect
Sent from my SAMSUNG-SGH-I777

Nizda1 said:
I don't think its the amount of bandwidth from the music, I tried running even irc on wifi then using Bluetooth keyboard and it cuts out wifi, however on cell data it works fine. Also I have a dual band router and got the same effect
Sent from my SAMSUNG-SGH-I777
Click to expand...
Click to collapse
Any chance you could force your router to 5ghz only and test again to see if the bluetooth causes the same interfearance?
Thanks

A little update on this,
I set my phone up the same way setup my table to see if the results are the same using a different device.
So music stored elsewhere in the house and streamed to the phone, and the phone transmits the music via bluetooth to the speakers.
Same problem occurs, and according to wifi analyser the wifi is strong, its the bluetooth which is having the problem.
Which leads me to believe that Bluetooth A2DP already pushes the bluetooth close to its limit and the added WiFi noise causes enough interfearance to cause the stutering music.
And this may be the case, as moving the phone or tablet right next to the bluetooth reciever on the speaker causes perfect playback.
At this point I am unsure how to go about remedying the situation, my options seem to be :
A: try to get a router that supports 5ghz and hope moving the WiFi bandwidth to a higher frequency alleviates the diruption to the bluetooth
B: try to find a DLNA based reciever for my music instead of using bluetooth.
C: open to suggestions :s

Game streaming is useless over wifi

Lots of stuttering, input lag and low bandwidth warnings using 5GHz band with router only four meters away.
Thought this would be a good way to game on my TV instead of a monitor but it seems to be useless unless you content them using an Ethernet cable.
Would be nice if they highlighted this in more reviews, it seemed to work fairly well with the shield tablet but it's worse on shield tv.

Even over wifi the streaming stutters, I'm regretting buying this.
Apparently a ping of 4 isn't high enough for smooth gaming.

Hello!
I bought some TP-Link AV1200's and it's working nicely over these. I must add I'm living in a newly built house so the cabling will be up to par. Also my PC is on a different loop to my Shield but the throughput is still excellent.

Shocky2 said:
Lots of stuttering, input lag and low bandwidth warnings using 5GHz band with router only four meters away.
Thought this would be a good way to game on my TV instead of a monitor but it seems to be useless unless you content them using an Ethernet cable.
Would be nice if they highlighted this in more reviews, it seemed to work fairly well with the shield tablet but it's worse on shield tv.
Click to expand...
Click to collapse
Depends on your router actually. Have you tried connecting to the closer band? instead of 5. Also check your settings because routers now and days saves devices addresses which can slow down the process or you could configure your settings to your shields IP and give that top priority.

Are both the shield and pc on the same wireless network? I think it's worth it to run an Ethernet to the shield (or the computer) so you're not making the router/access point congested. A high quality wireless device with mimo capabilities might perform ok.
My setup has shield connected by Ethernet and my laptop on wifi, no issues here even using 1080p and high settings

easy_mac said:
Are both the shield and pc on the same wireless network? I think it's worth it to run an Ethernet to the shield (or the computer) so you're not making the router/access point congested. A high quality wireless device with mimo capabilities might perform ok.
My setup has shield connected by Ethernet and my laptop on wifi, no issues here even using 1080p and high settings
Click to expand...
Click to collapse
I've tried with an Ethernet cable, sometimes it's very smooth but lags randomly which ruins the experience.
The software isn't up-to the job.
biggyhead said:
Depends on your router actually. Have you tried connecting to the closer band? instead of 5. Also check your settings because routers now and days saves devices addresses which can slow down the process or you could configure your settings to your shields IP and give that top priority.
Click to expand...
Click to collapse
I can't even got it play nicely over Ethernet, testing over wifi further is a waste of time at this point.

So it looks that the problem is the router or internet connection. And not the shield. It's just a guess.
Can you test streams with a Laptop or PC via Wlan and Lan? Then you can find out

Thats strange I have had no issue with this good to know through.

Game streaming requires a 30 - 50 Mbps consistent connection (I believe). When it comes to wireless networking there are a lot of factors that affect your max. speed (connectivity protocol - a/b/g/n/ac ?, distance from router or access point, # of connected devices, interference, etc..,) ...
Actual wireless speeds vary significantly from the above theoretical maximum speeds due to:
distance - distance from the access point, as well as any physical obstructions, such as walls, signal-blocking or reflecting materials affect signal propagation and reduce speed
interference - other wireless networks and devices in the same frequency in the same area affect performance
shared bandwidth - available bandwidth is shared between all users on the same wireless network
Below is a breakdown of actual real-life average speeds you can expect from wireless routers within a reasonable distance, with low interference and small number of simultaneous clients:
802.11b - 2-3 Mbps downstream, up to 5-6 Mbps with some vendor-specific extensions.
802.11g - ~20 Mbps downstream
802.11n - 40-50 Mbps typical, varying greatly depending on configuration, whether it is mixed or N-only network, the number of bonded channels, etc. Specifying a channel, and using 40MHz channels can help achieve 70-80Mbps with some newer routers. Up to 100 Mbps achievable with more expensive commercial equipment with 8x8 arrays, gigabit ports, etc.
802.11ac - 70-100+ Mbps typical, higher speeds possible over short distances without many obstacles, with newer generation 802.11ac routers, and client adapters capable of multiple streams.
Source : http://www.speedguide.net/faq/what-is-the-actual-real-life-speed-of-wireless-374

I'm streaming games and have no issue. Using a 5ghz AC router.

Shocky2 said:
I've tried with an Ethernet cable, sometimes it's very smooth but lags randomly which ruins the experience.
The software isn't up-to the job.
I can't even got it play nicely over Ethernet, testing over wifi further is a waste of time at this point.
Click to expand...
Click to collapse
Do you know what model router you have? Stock firmware?Custom firmware?

Shocky2 said:
Lots of stuttering, input lag and low bandwidth warnings using 5GHz band with router only four meters away.
Thought this would be a good way to game on my TV instead of a monitor but it seems to be useless unless you content them using an Ethernet cable.
Would be nice if they highlighted this in more reviews, it seemed to work fairly well with the shield tablet but it's worse on shield tv.
Click to expand...
Click to collapse
Works perfect fot me with asus router downstairs

I've been gaming loads through GeForce NOW, it's connected via ethernet through a pair of cheap homeplugs to the router.
Our ADSL is awful too, only 4Mbps asynchronous (500KB/s download bandwidth, about 50KB/s upload bandwidth).
I'm actually amazed it works so well - the video stream itself occasionally has artefacts or gets a bit pixelated, but it never stutters and never has any lag responding to gamepad inputs.
We're used to occasionally pixelated video when our ADSL fluctuates while watching youtube videos etc. anyway so this isn't a big deal.
It takes a bit of getting used to when gaming, but the overall experience is still fun and I accept that the video quality will get better when we move to a home with fibre.
Does anyone know how GeForce NOW actually manages to achieve such a native response time to gamepad inputs?
I find it truly remarkable that I can press a button on the gamepad and not notice any latency with the reaction on screen.
Surely any action must be sending packets over our crappy ADSL to NVIDIA's servers, routing them to the game's virtual machine, causing an effect in game, then streaming the video back over our crappy ADSL to be rendered on the TV.
I'd expect 100-200 milliseconds of latency at either side of that transaction (even over UDP), which I'd expect to ruin the gaming experience of real time games such as FPS / racing games.

rk73 said:
Works perfect fot me with asus router downstairs
Click to expand...
Click to collapse
Also using an Asus Router, it still sucked.

the.teejster said:
Game streaming requires a 30 - 50 Mbps consistent connection (I believe). When it comes to wireless networking there are a lot of factors that affect your max. speed (connectivity protocol - a/b/g/n/ac ?, distance from router or access point, # of connected devices, interference, etc..,) ...
Actual wireless speeds vary significantly from the above theoretical maximum speeds due to:
distance - distance from the access point, as well as any physical obstructions, such as walls, signal-blocking or reflecting materials affect signal propagation and reduce speed
interference - other wireless networks and devices in the same frequency in the same area affect performance
shared bandwidth - available bandwidth is shared between all users on the same wireless network
Below is a breakdown of actual real-life average speeds you can expect from wireless routers within a reasonable distance, with low interference and small number of simultaneous clients:
802.11b - 2-3 Mbps downstream, up to 5-6 Mbps with some vendor-specific extensions.
802.11g - ~20 Mbps downstream
802.11n - 40-50 Mbps typical, varying greatly depending on configuration, whether it is mixed or N-only network, the number of bonded channels, etc. Specifying a channel, and using 40MHz channels can help achieve 70-80Mbps with some newer routers. Up to 100 Mbps achievable with more expensive commercial equipment with 8x8 arrays, gigabit ports, etc.
802.11ac - 70-100+ Mbps typical, higher speeds possible over short distances without many obstacles, with newer generation 802.11ac routers, and client adapters capable of multiple streams.
Source : http://www.speedguide.net/faq/what-is-the-actual-real-life-speed-of-wireless-374
Click to expand...
Click to collapse
Another thing to note, WiFi is a half-duplex CSMA/CA connection. It can either send or receive at one time, not both, like Ethernet. Collision Sense will "listen" to see if anyone is broadcasting. Collision Avoidance will set a random timeframe, when transmission will retry. While this is happening extremely fast, there's a chance to lag there. If you must use WiFi instead of ethernet, try to dedicate a separate SSID for streaming, and make sure that nobody else connecting to that particular one. Try to set it to uncongested channel as well.

Unless you have one of the newer routers mu-mimo and other new software helps keep wifi onpar with ethernet

Works fine here. Asus Router is several rooms over and using a USB wifi stick in PC.
So its probably something other than the shield.

Meanee said:
Another thing to note, WiFi is a half-duplex CSMA/CA connection. It can either send or receive at one time, not both, like Ethernet. Collision Sense will "listen" to see if anyone is broadcasting. Collision Avoidance will set a random timeframe, when transmission will retry. While this is happening extremely fast, there's a chance to lag there. If you must use WiFi instead of ethernet, try to dedicate a separate SSID for streaming, and make sure that nobody else connecting to that particular one. Try to set it to uncongested channel as well.
Click to expand...
Click to collapse
ac is full duplex

pmerritt said:
ac is full duplex
Click to expand...
Click to collapse
Didn't realize that. Will look it up.

I can't get this to stream from my laptop. It says that i need a GTX 600 series or better but my laptop has a GTX 770M.

Wi-Fi connection problems when using Bluetooth device

So I just bought a TWE last week for my Nokia 6 (TA-1021), and I have noticed that when I connect that device to my phone it sometimes has a hard time connecting to our Wi-Fi network, or if it does connect it sometimes display 'No internet access'. Strangely, the problem goes away the moment I disconnect the Bluetooth earbuds. Now, this only happens on that specific device. I have a cheap Bluetooth speaker as well but my phone can easily connect to the Wi-Fi network. I have seek for Nokia's chat support but the solution they gave me wasn't for long term. Does anyone also has this kind of experience with their device? And does anyone know how to resolve this problem?

Bluetooth frequency range overlaps with Wifi 2.4GHz band. So if BT device working frequency clashes with Wifi 2.4Ghz channel your access point using you will have connectivity issues. You can try re-configuring your Wifi access point and selecting another channel. Or ditch 2.4Ghz band and use 5Ghz only. I had a similar issue with UE Boom speaker and ended up using 5Ghz band for wifi.

qwertysmerty said:
Bluetooth frequency range overlaps with Wifi 2.4GHz band. So if BT device working frequency clashes with Wifi 2.4Ghz channel your access point using you will have connectivity issues. You can try re-configuring your Wifi access point and selecting another channel. Or ditch 2.4Ghz band and use 5Ghz only. I had a similar issue with UE Boom speaker and ended up using 5Ghz band for wifi.
Click to expand...
Click to collapse
Now that you mentioned it, the audio does act up when using my Bluetooth devices near my wireless mouse, which also uses 2.4GHz band.
But as I said before this only happens on my true wireless earbuds, and not on my Bluetooth speaker. Does that mean that my speaker uses a different frequency?

yottabytenOugat said:
Now that you mentioned it, the audio does act up when using my Bluetooth devices near my wireless mouse, which also uses 2.4GHz band.
But as I said before this only happens on my true wireless earbuds, and not on my Bluetooth speaker. Does that mean that my speaker uses a different frequency?
Click to expand...
Click to collapse
Bluetooth operates in range 2400 to 2483.5 MHz (79 channels having 1Mhz width, plus two guard channels), while Wifi 2.4GHz operates in range 2412Mhz to 2484Mhz (12 overlapping channels of 20/40 Mhz width). So your speaker uses one of those 79 channels which does not clash with your WiFi, while earbuds use some channel causing interference. Unlike Wifi you cannot configure your earbuds/phone to use another BT channel to avoid clashes with Wifi.
As I said before you can try reconfigure your access point to use another 2.4GHz channel. But in my case reconfiguring Wifi AP did not help too much, because I have a noisy neighborhood with lots of access points operating in 2.4GHz band, so selecting available channel not clashing with bluetooth and not deteriorating Wifi performance appeared an impossible task, so I resorted to 5Ghz band.

qwertysmerty said:
Bluetooth operates in range 2400 to 2483.5 MHz (79 channels having 1Mhz width, plus two guard channels), while Wifi 2.4GHz operates in range 2412Mhz to 2484Mhz (12 overlapping channels of 20/40 Mhz width). So your speaker uses one of those 79 channels which does not clash with your WiFi, while earbuds use some channel causing interference. Unlike Wifi you cannot configure your earbuds/phone to use another BT channel to avoid clashes with Wifi.
As I said before you can try reconfigure your access point to use another 2.4GHz channel. But in my case reconfiguring Wifi AP did not help too much, because I have a noisy neighborhood with lots of access points operating in 2.4GHz band, so selecting available channel not clashing with bluetooth and not deteriorating Wifi performance appeared an impossible task, so I resorted to 5Ghz band.
Click to expand...
Click to collapse
I see. That really puts me at ease. I thought my device was somewhat broken.
Oh, I just received the December patch yesterday and my problem somehow disappeared. While writing this I am using the aforementioned wireless earbuds and so far, it doesn't do that constant connect and disconnect.

Probably earbuds/phone auto-selected another BT channel after the phone update.

Samsung Galaxy A20 5ghz Wifi not working.

To be clear off the bad, its not the router. Every other device in the house that connects to the 5ghz band works flawlessly. This is a brand new international phone being use with AT&T in the US, calls and texts function fine. Phone is fully updated and so is the router.
Wifi however is only picks up 2.4ghz bands. Not 5ghz.
Wifi analyzers pick up 2.4ghz but when switching to 5ghz I get a messages stating my phone does not support 5ghz. Anyone else with this issue?

@aq3e No. It doesn't have 5GHz.
2.4GHz has better penetration through walls anyway.
5GHz is really only good if you're in the same room.

physwizz said:
@aq3e No. It doesn't have 5GHz.
2.4GHz has better penetration through walls anyway.
5GHz is really only good if you're in the same room.
Click to expand...
Click to collapse
The phone does 5GHz as mentioned on samsungs website : 802.11 a/b/g/n/ac 2.4+5GHz

Snekxs said:
The phone does 5GHz as mentioned on samsungs website : 802.11 a/b/g/n/ac 2.4+5GHz
Click to expand...
Click to collapse
I have dual band and can only see 2.4
Might be different in other countries.
Australia had only 2.4 as shown here.
Connectivity
ANT+
No
USB Interface
USB Type-C
USB Version
USB 2.0
Location Technology
GPS, Glonass, Beidou
Earjack
3.5mm Stereo
MHL
No
Wi-Fi
802.11 b/g/n 2.4GHz
Wi-Fi Direct
Yes
Bluetooth Version
Bluetooth v5.0 (LE up to 2 Mbps)
NFC
Yes
https://www.samsung.com/au/smartpho...-Q3bFagLE-84I8pWNocaAq5vEALw_wcB&gclsrc=aw.ds

I also dont have 5ghz and dont have the advacned wifi option to change bands... Why this model suck this much? Probably a OS stupid limitation...

rophiroth said:
I also dont have 5ghz and dont have the advacned wifi option to change bands... Why this model suck this much? Probably a OS stupid limitation...
Click to expand...
Click to collapse
5ghz is only good if you're in the same room

The A20 does support dual band, but it's disabled. I tried to enable it by replacing the mx140_wlan.hcf file located at /vendor/etc/wifi/ with the one from the A30 and it worked, but there's a problem.
For some reason the signal range is terrible, to detect a 5 GHz network the phone needs to be next to the router, if it gets some centimeters away the signal drops at the point where the network is not detected anymore.

physwizz said:
5ghz is only good if you're in the same room
Click to expand...
Click to collapse
5ghz wifi is certainly not only good in the same room, check online heatmaps of 2.4 vs 5ghz to compare, it's not a huge difference. Given how much less interference you will get on the 5ghz it often works a lot better than 2.4ghz even at longer ranges. Fix peoples internet for a living and I've seen thousands of peoples speeds double or even triple from changing to 5ghz even when router is on the first floor and they use it on the second.

FrankdonkeybrainReynolds said:
5ghz wifi is certainly not only good in the same room, check online heatmaps of 2.4 vs 5ghz to compare, it's not a huge difference. Given how much less interference you will get on the 5ghz it often works a lot better than 2.4ghz even at longer ranges. Fix peoples internet for a living and I've seen thousands of peoples speeds double or even triple from changing to 5ghz even when router is on the first floor and they use it on the second.
Click to expand...
Click to collapse
Read the article here.
It shows that 5ghz suffers from greater attenuation rates than 2.4
2.4 GHz vs. 5 GHz WiFi
Learn about when to use 2.4 GHz vs. 5 GHz WiFi with CenturyLink. The difference between these frequencies can affect your speed.
www.centurylink.com

physwizz said:
Read the article here.
It shows that 5ghz suffers from greater attenuation rates than 2.4
2.4 GHz vs. 5 GHz WiFi
Learn about when to use 2.4 GHz vs. 5 GHz WiFi with CenturyLink. The difference between these frequencies can affect your speed.
www.centurylink.com
Click to expand...
Click to collapse
(I know this doesn't help much with the OP's question but to dispel hearsay I felt it needed to be said.)
I know you don't know me, but I said I resolve peoples internet problems for a living both on supplier and consumer side and have tested this with thousands of customers but you trust a random article with very little info more and don't even bother to look at heat maps? This article has been made by someone who read a blurb about wifi, but they did get one thing right...
"A lot of electronic devices and appliances use the 2.4 GHz frequency, including microwaves, baby monitors, and garage door openers. If you have many of these in your home, or if you live in apartments or condos surrounded by other people, that 2.4 GHz band is likely to be congested, which can damage speed and signal quality."
That list is very short, it also includes lots of computer peripherals, security cameras, smart home devices, walkie talkies, radios, remote controls, wireless handsets (landlines, not mobiles) basically every wireless device you can think of uses 2.4ghz and even your microwave! all these devices on a long range signal means your neighbours devices also overlap to combine together to make the 2.4ghz band for most consumers a disaster for anything requiring more than slow speeds. This goes without even mentioning that the 2.4 ghz band only has 13 channels (3 none overlapping) to spread every wifi device out on to stop interference, in most residential are this is simply not enough. In many cases this is so bad that even next to the router people can lose 80 - 90% of their speeds or have so much interference that even loading webpages takes a long time due to the amount of data being lost.
Like I said before, even if the 5ghz DOES have shorter range, it is not so short that you have to be in the same room, what would be the point? That is a something people assume because it's a "shorter range signal" but it's not that short! the 5ghz is usually faster due to it's naturally higher data rates and more consistent due to the lack of interference from intermittent signals. Most things that interfere with 5ghz are constant and therefore it's much easier to test and know what speed you can get in other rooms away from the router, unlike the 2.4 which has the same issues with passing through anything only with a load of other issues on top too!. The 5ghz also has the advantage of having over 100 wifi channels to spread networks out on to avoid them interfering with each other, a vast upgrade to the 2.4ghz.
Here is an example of a heatmap comparing 2.4 and 5ghz but just looking at any article that goes beyond a very brief description will show you why the 2.4ghz is often so much worse than the 5ghz.
What's the Difference Between 2.4 and 5 GHz WiFi?
What do these numbers actually mean? Does it realy matter? Is one better than the other? How many questions are we going to ask in this description?
socialwifi.com
2ldr - It depends on your house and nearby networks, test both bands with different devices in different rooms and compare speeds, outside of doing more thorough testing with other apps and equipment this is the easiest and quickest way to see which will work better.

You have 2 choises use BT modem BT modem Plan A: one Device in 5GHz network one device sharing Internet from BT modem feature. +Advance use Open Garden mesh client for better Internet throught BT modem. Construction of my plan:One or two devices in 5GHz WiFi network and 3 devices creating PAN network trought Bluetooth.if Your Bluetooth version is 5.0 you can use Mesh network profile. than using Mesh network structure. Mesh Bluetooth network structure helping one device to other. but you need to know you will use 2.4GHz trought BT modem and Mesh networks.

TBM 13 said:
The A20 does support dual band, but it's disabled. I tried to enable it by replacing the mx140_wlan.hcf file located at /vendor/etc/wifi/ with the one from the A30 and it worked, but there's a problem.
For some reason the signal range is terrible, to detect a 5 GHz network the phone needs to be next to the router, if it gets some centimeters away the signal drops at the point where the network is not detected anymore.
Click to expand...
Click to collapse
I fixed this issue on crDroidAndroid-13.0-20221126-a20-v9.0 by copying both mx140_wlan.hcf and mx140.bin taken from this a30 git. Works great on my a20.

shammoi said:
I fixed this issue on crDroidAndroid-13.0-20221126-a20-v9.0 by copying both mx140_wlan.hcf and mx140.bin taken from this a30 git. Works great on my a20.
Click to expand...
Click to collapse
Interesting. What's your A20 model? I believe I also tried to do that, but I'm going to retry it.

Done it on a SM-A205W.

shammoi said:
Done it on a SM-A205W.
Click to expand...
Click to collapse
No luck. I still have the signal issue

Do it again in the following order maybe ?
1. Download both mx140_wlan.hcf and mx140.bin from the git I gave you above.
2. Turn your wifi off.
3. Reach /vendor/etc/wifi folder using your favorite file browser ( Mine is Mixplorer ).
4. Overwrite both files.
5. Reboot your device.
6. Turn Wifi back on.
7. Do a Wifi speed test ( Wi-Fi Sweetspots app for me ).

shammoi said:
Do it again in the following order maybe ?
1. Download both mx140_wlan.hcf and mx140.bin from the git I gave you above.
2. Turn your wifi off.
3. Reach /vendor/etc/wifi folder using your favorite file browser ( Mine is Mixplorer ).
4. Overwrite both files.
5. Reboot your device.
6. Turn Wifi back on.
7. Do a Wifi speed test ( Wi-Fi Sweetspots app for me ).
Click to expand...
Click to collapse
I use a Magisk Module instead of directly overwriting the files, but this should make no difference. I believe it may be a hardware difference between our devices. On the schematics the 5GHz antenna seems to be marked as optional, maybe that has something to do.
I tried to put my device next to the router, and when I did it the network got detected (with bad signal tough), I could connect and the download speed oscillated between ~50-200 mbps (my network has 300 mbps). Once I moved further from it, the WiFi disconnected as the signal was lost.

Link found to WiFi 5GHz problems

So like everyone else I have the 5GHz wifi problem. If I'm not in the same room as the router you can forget using 5GHz. So I found the link to the problem. I just don't know how to solve it. I connected to the 5GHz in a trouble location while having mobile data and Bluetooth turned on. Internet speeds were terrible to the point the speed test would barely run. I turned Bluetooth off, and the speed test are right on par with my old phone, and 5GHz is working fine while Bluetooth is off.

5Ghz is not meant for long range though, 2.4Ghz takes care of that..
You should be able to obtain a signal within around 30feet, potentially more, but it'll drop off at that point.
2.4 carries a lot better..
Could it be to do with the channels that the phone may be using for WiFi??
Turn off all WiFi devices and Bluetooth in the room and see how the test goes.
Very strange.

I am a bit confused as to why people are reporting needing to turn BT off to operate 5GHZ Wifi. BT operates in the 2.4xx space. If you are saying turning it off resolves your problem this points to either a greater hardware/software issue or that you are not operating in 5Ghz at all.

I understand how 2.4 and 5 work as far as range and bandwidth goes. I tested this theory in the same spot my old phone would get 100mbps down (what I pay for) while connected to 5Ghz Wifi. The OnePlus 8 Pro while connected to 5Ghz in the same spot with Bluetooth enabled would cause the phones speed to drop to around 5mbps down and sometimes to the point I get nothing and losing connection. Now if I repeat the same scenario but this time I disable Bluetooth the connection is stable and speeds are 90-100mbps down. I repeated this multiple times sitting in the same location. Yes I understand that BT uses 2.4Ghz. I'm not saying that you need to turn BT off for 5Hhz Wifi to function. What I am saying is some how on this phone, and reported by others, the 5Ghz Wifi on this phone does not function properly. There have been zero solutions or reasons why that I am aware of. My post was pointing to a possible reason why and the fact that it is a hardware/software problem and maybe the right person could look into. I have no reason why the BT being on and off affects the 5Ghz Wifi on this phone and not the 2.4Ghz but it does. And my old phone was a $300 Samsung A50 that I was testing this phone against in my post. I tried to find what channels the phone uses for WiFi but was unsuccessful. If you find the channel lost I would be more than happy to switch channels and see.

dladz said:
5Ghz is not meant for long range though, 2.4Ghz takes care of that..
You should be able to obtain a signal within around 30feet, potentially more, but it'll drop off at that point.
2.4 carries a lot better..
Could it be to do with the channels that the phone may be using for WiFi??
Turn off all WiFi devices and Bluetooth in the room and see how the test goes.
Very strange.
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It ends up it is an issue with the channel. Before I bought the phone I had manually set my router to channel 153 because auto kept putting me on the same channel as my neighbor. The OnePlus will connect to channels 149 and 153 but isn't really functional. I had to select one of the UNII-1 Channels. Once I did that 5Ghz worked and is functional and stable. The sad part is the reception isn't nearly as good as my $300 Samsung. Maybe they'll improve that if they can. I'm still bewildered why turning off Bluetooth allowed channel 153 to work.

travle said:
It ends up it is an issue with the channel. Before I bought the phone I had manually set my router to channel 153 because auto kept putting me on the same channel as my neighbor. The OnePlus will connect to channels 149 and 153 but isn't really functional. I had to select one of the UNII-1 Channels. Once I did that 5Ghz worked and is functional and stable. The sad part is the reception isn't nearly as good as my $300 Samsung. Maybe they'll improve that if they can. I'm still bewildered why turning off Bluetooth allowed channel 153 to work.
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Click to collapse
Turn on auto channel on your router. You're going to have issues unless your entire network and devices are moderated perfectly.
Auto does the job