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1.201 Wi-Fi

After testing new firmware with two different routers at two different places I can definitely say it's got the same range and disconnect issues when compared to existent v.1 with fix applied. What is your experience folks?

Improved network speed over 5GHz band
Range is okay for me, but the speed that the update brings via 5 GHz band has improved significantly as compared to 12.1.A.0.266, a little better than PureXPERIence ROM.
Stock 12.1.A.1.201: (Attachment 1) http://forum.xda-developers.com/attachment.php?attachmentid=2669192&stc=1&d=1396670645
PureXPERIence v1 ROM: (Attachment 2) http://forum.xda-developers.com/attachment.php?attachmentid=2669193&stc=1&d=1396670725
Stock 12.1.A.0.266: (Attachment 3) http://forum.xda-developers.com/attachment.php?attachmentid=2669196&stc=1&d=1396670772

Trust you to provide us with test results...
Thks!
Edit: don't know what steroid your system is on D) but my tests gave me 15mbps for dl and 39 for upload - think its the low end plan I subscribed to (Singtel)
Am envious...

Trust you to provide us with test results...
Thks!
Edit: don't know what steroid your system is on D) but my tests gave me 15mbps for dl and 39 for upload - think its the low end plan I subscribed to (Singtel)
Am envious...
Click to expand...
Click to collapse
Maybe is your router that is limiting the speed. I'm using ASUS RT-N66U, on 5 GHz band. 2.4 GHz band has always been limited to just 50 Mbps or so for both downstream and upstream (Xperia SP limitation).
My broadband speed on 5GHz band differs significantly at times too, from lows of 60 to highs of 120 Mbps. No idea why is there such high different though.
Sent from my C5303 using xda app-developers app

Speed is not an issue, I've got what I'm paying for when I'm close to the router.. It's range and disconnection I'm having problem with, especially when connected to an old G router. So I've applied the same trick i used before and it's working.
This I found at xperia Z forum and it might help someone else too.
1. Root your phone. Download and install Root Explorer or ES File Explorer (Explorer).
2. Make sure you manage how to use the Explorer as a tool to modify files in the /system folder.
3. Using the Explorer, browse to /system/etc/firmware/wlan/prima/WCNSS_qcom_cfg.ini
4. Make a backup if you wish. Most of the parameters inside need not be changed except the followings:
a. gTxPowerCap=30 (change to 60 increases the TX power)
b. gDot11Mode=auto (change to n to always connect as n, but if you sometimes want to use g, don't change this) (this I changed to auto though it was 0)
c. You may wish to play around with the other parameters as well
5. Now save the file.
6. Browse to /system/etc/hostapd/hostapd_default.conf
7. Again make a backup copy.
8. This is a long file. So please hang on. Amendment of the following is recommended:
a. max_num_sta=2007 (change to 10 to only display 10 wireless AP)
b. channel=6 (change to 0 can solve most wifi connection problems).
This might drain battery a bit faster, but I can live with that.

802.11g WiFi is normally weaker than 802.11n even on N 5GHz. Increase the TX will not only increases battery consumption, it also can get hot much quickly. I know this because I set my RT-N66U to 110mW from initial 80mW.
Why not just invest into a 802.11n router. Single band N300 is more than what you need since your broadband isn't all that fast in the first place. Just don't go for N150, it isn't built for the future when broadband hits 30 Mbps or higher and coverage is much weaker than N300 too.
Also, unless you're using custom ROM or on unlocked bootloader with advanced, there's no way you can modify these values. Both will void your warranty which can put your phone on risk.

Well, not everyone have N router, so you're not going to find it everywhere, and I like to be backward compatible. I was also thinking about decreasing Tx power, perhaps 60 is a bit too much. I'm on existenz v3 w/LB and root is enough to change these values. You're right about warranty, however think about doing this should know that.

Galaxy S5 and the higher channels of 5ghz wifi

Hello all,
i'm sure i'm not the first to ask, yet i didn't find any threads about this.
my phone can't seem to connect to 5ghz wifi when the channel is a higher one (149-161). it doesn't even see the SSID. when I switch to the lower channels (36-48) I can see it and connect.
I would much rather fix this so i could use the higher channels where the signal is better overall.
any idea why this is hapenning? on my iphone 6 it works great when using channel 149.
I'm running 5.1.1 Fusion Rom rooted.
cheers!

Anybody knows ?

maybe it's a hardware problem?

i'm seeing this same behavior on SM-G900T (TMO S5) and other devices apparently due to missing country code and calibration files.
please see notes and upvote BUGBASH-2594 : 5ghz WiFi bands partially not seen as client and not available at all as hotspot
hopefully that helps bring together awareness of this widespread issue that seems to be easily overlooked (i mostly find myself using 2.4ghz networks anyway).

Tab S5e slow Wifi on 5 GHz with lower channels

I've got the S5e WIFI EU version for 3 days.
I have noticed that if the WIFI channel - 5G - to which I connect is less than 100, the speed drops considerably.
If I am more or less close to the router (i.e 5m with a wall in between) there is no problem, I get more or less the maximum connection, but when I walk away - about 10m by eye - with a couple of walls between the speed drops a lot - 10/15 mbs -
It even takes a long time to establish the connection. If I switch to a channel greater than 100, testing exactly at the same points speed increases - 40/50 mbs -
I have done the same tests with a Samsung Galaxy Tab S2 (2015) and with an iPad Pro 2017, and in this case the operation is the opposite; if I use a low channel (i.e. 48)
the speed increases - the download speed is close to the maximum of my line, between 90-100 mbs -, which seems more logical since when using a channel under coverage it increases.
In this case - a channel above 100 - in areas where the coverage is not very good (10m distance with obstacles) the speed of the S5e is close to that of Tab S2,
yes, the download speed is always lower; interestingly, the upload speed of the S5e is almost always higher than that of the Tab S2 and iPad Pro.
I know the design problem of the S5e, and I have been able to verify it - by covering the lower left -. Therefore, I have done all the tests with the tablet oriented vertically.
Does anybody else has this problem?

Hotspot works on Android phones, not on Win or Mac?

Hi All,
The problem is that the hotspot (2.4 GHz, Device identification:default, security WPA2-Personal) is correctly seen by the laptops but there is no internet connection. I received the Mi 9T last week and it's a great phone except for the hotspot not working properly. I received it with the global version installed, I did all the usual updates up to MIUI V11.0.4 (QFJMIXM).
On the Macbook Pro (Retina 2015, Mojave 14.6) there is a very slow, barely usable, connection which is confirmed by the MCS index = 0, despite the strong signal (RSSI= -26 dBm). Under the WiFi information on the Mac, the country code is missing and the transmission channel is usually an unusaul value (3, 7 or 8 I noticed). For comparison, when using the hotspot function in another Android phone (Honor 8X with stock ROM) with the same SIM card , the MCS index is 7, the country code is correct, the transmission channel is 6 or 11, and the download/upload is around 20 Mbps.
When using a Dell laptop (Windows 10), the laptop connects to the MI 9T hotspot and has an IP but the pages are not even loaded. Funny enough, when both laptops are connected to the wifi created by the MI 9T, they can ping each other correctly.
The data rates on the Mi 9T over 4G are really fast (>40 Mbps). The Honor 8X works perfectly when connected to the MI 9T, with rates > 20Mbps.
Reading other discussions online, someone fixed it with
Code:
adb shell settings put global tether_dun_required 0
I checked the correct value after rebooting (zero as expected) but still no/slow internet on the laptops. Same with adding DUN in the APN type. I also tried to change the SIM from slot 1 to 2, no difference at all.
As a last desperate chance, I unlocked the boootloader and flashed the European version (QFJEUXM) with TWRP. The flash was perfect, but the problem is still there exactly as described above with the Global ROM.
Is anyone else having a similar problem? Do you think that other ROM (Pixel Experience, LineageOS, etc.) may fix this?
I'd really like to keep the phone because the hardware is amazing, but the overall experience is quite a pain with such a limitation on the hotspot function.
Hope someone can finally fix this

Used hotspot many times with notebooks, phones, consoles nad never had a problem. you could try to set cellular settings manually. I'm on 11.0.4 also Lineage worked ok

Yes thanks, I tried to use the same APN settings of the other android phone with the same SIM, still same problem.
Update: I have upgraded to the latest weekly ROM (MIUI 11.2 20.3.26), unfortunately the country code is still X3 when using the hotspot, both at 2.4 GHz and 5.0 GHz. The only difference is that at 2.4 GHz the MCS level is 0 (even if internet works normally) and with the 5 GHz setting the MCS is 7 or 8. In both cases internet works fine, but the country code is an issue with the firewall on other devices.
Any suggestion or help is greatly appreciated as I really need the hotspot function to work as per the other Android phone!

[Wifi Issues] Not what you may expect

Hi all, just picked up a Tab S5E today - love the screen, built quality etc. What I don't love is the Wi-Fi performance. I'm left very confused.
I installed Android 10 right out the box and did a clean reset - after which my link speed in Wi-Fi settings shows 86 mbps throughput. For reference, my other phones (Oneplus 5 - 3 years old and Oneplus 8 Pro both show 866mbps receive and transmit speed).
When right next to the router I get a max of about 150mbps, with an average of 80mbps on Speed Tests - This is the case whether holding the tablet or not. When about 5 metres away through a wall this goes down to 45-55 Average, in comparison both phones show around 280-330 average.
When right next to the router with my other phones I get my networks full download which is 550mbps.
I understood before purchasing that if holding the tablet in the bottom left corner when in horizontal position (camera on the left) you are likely to lose signal - potentially mitigated with using a case. However, by wrapping my hands round the left antenna, on average - the speed increases to around 150-170 - odd...
When attempting to put pressure on the antennas from both ends and firmly wrapping my hands around the tablet, I do not see any network connectivity issues relating to dropouts and the WiFi bars remain on 5.
Honestly not got a clue what's happening here, either who have decently fast connections don't big this up online, or this is just a weird hardware fault with my unit.
Pretty disappointed. If anyone has any advice / screenshots of their speed results higher than this - I would greatly appreciate this, in which case I will definitely pursue a replacement device. I can't accept that in 2020 a device cannot achieve full 5.8ghz WiFi speeds when directly next to the router.

There is nothing wrong with your device. The maximum WiFi speed on the Galaxy Tab S5e is around 160 to 180 Mbit/s. I didn't expect this either when I bought this model and it is also a major bummer for me.
The device supports 802.11ac, but unfortunately Samsung only put a single antenna into it which limits it to a single MIMO stream (on a 80 MHz channel that gives you theoretical 433 Mbit/s throughput, which of course no device will ever reach). I would expect something around 220 Mbit/s with this configuration, but somehow the maximum speed I get with this device is only around 160 to 180 Mbit/s. It is not only the speed that is bad, it is also the signal strength that is exceptionally bad compared to all my other devices.
Your phones and other devices probably have two antennas and support 802.11ac with 2x2 MIMO which gives you theoretical throughput of 866 Mbit/s and around 500 Mbit/s in practice.

Thank you for your reply. I just received a replacement unit and tested before updating to the Android 10 update. There was indeed something wrong with that previous device as the link speed shows 433mbps and I consistently got 280-295mbps download.
However, I just updated it to Android 10 - now it's completely gone again. Link speed 87mbps and downloads of 20-70mbps. This is most definitely a software issue which I'll be contacting Samsung about.

Matthius said:
Thank you for your reply. I just received a replacement unit and tested before updating to the Android 10 update. There was indeed something wrong with that previous device as the link speed shows 433mbps and I consistently got 280-295mbps download.
However, I just updated it to Android 10 - now it's completely gone again. Link speed 87mbps and downloads of 20-70mbps. This is most definitely a software issue which I'll be contacting Samsung about.
Click to expand...
Click to collapse
I also got a WiFi issue when upgrading to Android 10. My tablet was working perfectly before the update but now will not auto connect. I agree this must be a software issue.

I have just upgraded my tablet to Android 10 and the Wi-Fi speed maxes out at 60 Mbit/s. I'm thinking about selling my device again, this is unusable.

rndm42 said:
I have just upgraded my tablet to Android 10 and the Wi-Fi speed maxes out at 60 Mbit/s. I'm thinking about selling my device again, this is unusable.
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Click to collapse
All I can suggest is to create a bug report in Samsung members app. I did so over 10 days ago now and am awaiting a response. The more people that do so the better - a fix needs to be rolled out for this. Something's quite wrong with how the WiFi module is working after this update, probably driver related.

Has anybody tried wiping the cache partition in Recovery Mode? If that doesn't help back up your device and perform a Hard Factory Reset. That normally fixes any software issues.

iceepyon said:
Has anybody tried wiping the cache partition in Recovery Mode? If that doesn't help back up your device and perform a Hard Factory Reset. That normally fixes any software issues.
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Click to collapse
With both the tab s5e's I've had I had reset them both twice, and cleared cache in recovery.
This is definitely an issue brought about with the update considering Android 9 was absolutely fine network wise.

Matthius said:
With both the tab s5e's I've had I had reset them both twice, and cleared cache in recovery.
This is definitely an issue brought about with the update considering Android 9 was absolutely fine network wise.
Click to expand...
Click to collapse
In that case you may have purchased a unit from a bad batch.

iceepyon said:
In that case you may have purchased a unit from a bad batch.
Click to expand...
Click to collapse
I disagree, this is definitely a new problem that was introduced with the recent Android 10 upgrade. Samsung made the Wi-Fi signal "more stable" by limiting the modulation type to QPSK (MCS-2) instead of 256-QAM (MCS-9) which effectively caps it to 87,8 Mbit/s on a 80 MHz channel. Instead of 180 Mbit/s with Android 9 (which was pretty bad), users are now getting around 50 Mbit/s (which is incredibly bad).

Auto WIFI Reconnection problem
rfb813 said:
I also got a WiFi issue when upgrading to Android 10. My tablet was working perfectly before the update but now will not auto connect. I agree this must be a software issue.
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Click to collapse
My S5e won't auto-reconnect following the recent upgrade to Android 10. Also stutters and freezes for a while after restarting in various apps and settings. System software issues presumably.

rndm42 said:
I disagree, this is definitely a new problem that was introduced with the recent Android 10 upgrade. Samsung made the Wi-Fi signal "more stable" by limiting the modulation type to QPSK (MCS-2) instead of 256-QAM (MCS-9) which effectively caps it to 87,8 Mbit/s on a 80 MHz channel. Instead of 180 Mbit/s with Android 9 (which was pretty bad), users are now getting around 50 Mbit/s (which is incredibly bad).
Click to expand...
Click to collapse
Thanks for doing the research to find this out. This definitely explains exactly what I'm seeing.
Very disappointing as I was achieving fine speeds 290mbps or slightly higher prior to the update. Now WiFi on the whole is pretty poor in comparison.
Why was this done intentionally - it really makes no sense. Surely this must get reverted.

I just got an update this morning aimed at WiFi improvements

TheIntruder said:
I just got an update this morning aimed at WiFi improvements
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Click to collapse
I can confirm this update has fixed all issues for me. Normal 433 link speed when next to the router and the same WiFi download speed as on Android 9.

Since updating to Android 10, I started having issues with mesh wifi (I'm using Google Wifi). Same position and setup that used to work perfectly with Android 9, now the table starts disconnecting from Wifi and I have to reboot to reconnect. Anyone else has this issue?

I'm contemplating buying an S5e tablet (in Australia). Does the reduced speed of WiFi impact on any practical applications ? My internet cable subscription is for 50mbps. It used to be 100mbps, but I dowgraded on purpose, seeing no benefit for the cost. Even at 50mbps (practically 46) we have moments like today when both myself and my son are working remotely to different employers, while my wife us watching a video. I realise there could be apps which require more bandwidth, so I'm just curious what those might be.

ludoo said:
Since updating to Android 10, I started having issues with mesh wifi (I'm using Google Wifi). Same position and setup that used to work perfectly with Android 9, now the table starts disconnecting from Wifi and I have to reboot to reconnect. Anyone else has this issue?
Click to expand...
Click to collapse
That is exactly my problem as well. Google WiFi and random disconnects from the tablet that sometimes get fixed by disconnecting/reconnecting but majority of the time a restart is the way to solve it.
No other device in the household gets disconnected from the network (neither was the tablet before upgrading) so it is definitely the update to blame.

Having similar issues following the update. I tend to turn the tablet off when I'm not using it, and thus far I have yet to successfully connect to WiFi on startup. I have to manually toggle WiFi to get it back on.

Same wifi issue here after updating to Android 10. Is there a way to manually update using file some were receiving in late July?

I am really bothered by this GROSS limitation too! It makes issues with the driver even worse.
Maybe our answer can be found on this page or something or nothing ?
https://source.codeaurora.org/quic/la/platform/vendor/qcom-opensource/wlan/qcacld-3.0/