Database Users

Internet issues on Note 4

Well, after update my note 4 to lollipop, I noticed that it is taking took much time to load pages on websites and even to load the content on Google play. But the strange part is that only occurs on my Wi-Fi, that have 60 mbps (usually it reaches 7 Megabytes per second download). When I use the 4 G connection or go to my mom's house (that have a much slower connection, 10 mbps or 1 Megabyte per second downloading), it's normal. It has some configuration that I can do to change that situation? I am gonna attach the info of my smartphone and pictures of my router... Thanks (ps : sorry about my English)

FatBruno said:
Well, after update my note 4 to lollipop, I noticed that it is taking took much time to load pages on websites and even to load the content on Google play. But the strange part is that only occurs on my Wi-Fi, that have 60 mbps (usually it reaches 7 Megabytes per second download). When I use the 4 G connection or go to my mom's house (that have a much slower connection, 10 mbps or 1 Megabyte per second downloading), it's normal. It has some configuration that I can do to change that situation? I am gonna attach the info of my smartphone and pictures of my router... Thanks (ps : sorry about my English)
Click to expand...
Click to collapse
go to recovery make full wipes , then set up again your phone

Yeah, I already did that... I even flashed the rom again.... And like I said, the problem seems to be only in my Internet connection... I just want to know what problems it is and how to resolve it... Another thing.. With the OOKLA speed test I can't measure the speed anymore... Wtf is going on?

Never mind, it suddenly get better... I think it was a Internet problem...

Poor wifi reception of ZUK Z1 vs Nexus 4

Hi,
My ZUK Z1 european version has just arrived and I am noticing that it cannot take the 5Hz wifi when there is some distance in between. If it does it, it disconnects in seconds. It does connect to the 2.4Hz g without too many problems (some times even not this one). If I put only 5Hz networks, the same happens. Sometimes it doesn't see the signal at all.
This doesn't happen when I am next to the router. So, since the 5Hz deteriorates more with distance (AFAIK) what I'm describing shouldn't be surprising. My doubts are because with the nexus 4 (Android, not cyanogen) it grabs the 5Hz without any problem at exactly the same long distance (2 thin walls, few furniture in between), and I find very unlikely that the wifi chip of the nexus 4 is superior than the one of the zuk z1.
UPDATE:
It is very strange. With the ZUK, in front of the router I get 110 Mbps (5Hz, n-only), when I move to the room in question I get 3-4 Mbps only, so about to be disconnected.
With the nexus 4 (same 5Hz connection obviously), I get 50 Mbps when I am in front of the router AND when I am in the problematic room. How is that possible?
If I test connecting to the 2.4Hz (b,g,n), the nexus 4 gives the same 40-50 Mbps no matter the distance. I have to go to a very "protected" room to see a drop to ~15 Mbps, again showing no difference between the two bands.
If I test with the zuk, it gives 20 Mbps, if I move to the very "protected" room, I see a drop down to 0.3 Mbps
So, it is like the wifi is much better if you're in front of the router, otherwise is significantly worse? Is that feasible? Can it be a software problem?

Hello! first of all excuse my bad english
I received today me ZUK 1 and im having the same trouble, its impossible to use wifi without problems when you are in a different room from router, and especially when you put the smartphone in horizontal position ,grab it with two hands and cover the superior part with your hand, when i do this i simply lost the connection even if im in front of router. I come from HTCmania, a spanish forum of smartphone and we are few people with the same problem and is very frustating that there is no solution and noboy in Lenovo or ZUK says nothing about this trouble.

Me too. Wifi is very very very bad if you hand is in the top (camera zone). Horizontal, vertical, it does not matter if you cover the area with his hand, zasss wifi dies.
Sorry my very bad english.

Same problem here
I have the same problem as described. I have not noticed if my hand position affects it. My OnePlus one and my Sony Xperia Z1 compact both manage to hold on to the wifi in my bedroom albeit less than full signal. The Zuk z1 just keeps dropping off and sometimes doesn't find the wifi.
Have anyone contacted Zuk about this? Mine was bought through Spanish eBay but seems to have been sent to Spain from Germany.
Following the thread for a solution as this problem is a definite dealbreaker.
Daniel

Uau, I've just tested it and while it is unrelated to the problem that I say (this is, the ZUK receives the 5Hz band very bad it seems) it is completely true. While doing a wifi test (Wi-Fi Deadspot app), connected to the 2.4Hz, from 55 Mbps if I put the hand over the top part of the mobile it drops to 30, if I put the hand in the middle part of the back zone it drops to <5Mbps!!
*Having it over a table doesn't make a difference for me.
UPDATE: The measurements from this app seem very variable, based on other comments it doesn't seem to be related to the software but to the ZUK. Now the 5Hz band gives excellent results from the room where before it couldn't even see the wifi.
So it does seem capable, but VERY unstable I guess. Is this hope for waiting a software-based solution? Or we should mark this phone as a wifi-less phone ...
(damn ~_~ they sure knew about this from the units sold in China)
Africa2k2 said:
Me too. Wifi is very very very bad if you hand is in the top (camera zone). Horizontal, vertical, it does not matter if you cover the area with his hand, zasss wifi dies.
Sorry my very bad english.
Click to expand...
Click to collapse

2,4 ghz
Just checked and it turns out that my wifi is on 2,4 ghz. So I guess the conclusion is that the problem is unrelated to the frequency.

There are two problems:
Problem 1- Wifi drops when your hand is on the top of your phone, irrespective of the frequency
Problem 2- Wifi in the 5Hz is very unstable and/or much worse when compared with a nexus 4 phone (relevant provided it is an old phone), related to the frequency (or it seems so at least)
dp12776 said:
Just checked and it turns out that my wifi is on 2,4 ghz. So I guess the conclusion is that the problem is unrelated to the frequency.
Click to expand...
Click to collapse

I didn't noticed anything before i read this and tried to put my hand on the upper part of the phone : my WiFi connection instantly shut down even if I had 3bars over 4... So yeah there's a real issue with the WiFi antenna here :S (first real drawback I have with this device...)
Apart from that, I owned a Nexus 4 too just before this device and I personally have a better WiFi reception on my Zuk Z1 (one more bar for both 2.4 and 5Ghz bands)

Does the same happen with ZUI os?

I also have a Wifi problem with the international version of Zuk Z1.
Testing the Wifi with the App "Wifi DeadSpot" in both the Zuk and a Oneplus 1, the results are:
2m far from the router:
OnePlus1: 38Mbps (GOOD)
Zuk Z1: 9Mbps (AVERAGE)
10m far from the router:
OnePlus1: 22Mbps (GOOD)
Zuk Z1: 0.45Mbps (POOR)
In both cases the phone is in vertical and without touching it (holding it near the camera apparently really makes Wifi coverage worst)
If the Zuk is in horizontal position, the Wifi signals is also worst: 0,5-1 Mbps at a 2m distance.
I tried resetting the Zuk to factory settings and the results are the same, so I don't think it's a software issue. Could be a manufacturing defect or just a cheap wifi chip?

Wifi on the ZUK Z1 is better than Note 4, S6, Xperia Z3+ and Mi Note.
On some positions I don't get Wifi, with the Z1 2/4.
Speed up to 50Mbit/s over 2.4GHz. With 5GHz about 120 Mbit/s. I don't need more.

Hello, I received my EU Z1 today and I'm coming from a Nexus 4 too. I don't have any trouble with 2.4ghz WIFI, the connection its perfect two stories under the router and I can say its as good if not better then the Nexus 4 holding it in any way. I think you got defective devices.

I hope your are right.
I'm considering buying this device. Would be great if other people could tell about their wifi reception.

Same problems here, with cyanogenos, didn´t test ZUI os.
I´ll posted the bugs on cyngn forum here: http://community.cyngn.com/t/some-m...lash-flashlight-poor-wifi-back-button-led/208
But not sure if its a software or hardware issue, i guess hw.

It's pretty random...
If i have the phone 3-4m from 2.4ghz router through a wall:
Keeping the Z1 in the same position, without touching it, WiFi reception varies from 2-4Mbps to 40Mbps (from test to test in Wi-Fi deadspot app). Can't predict when I get which speed. Mostly it's very low, though.
Disconnecting and reconnecting sometimes helps but mostly it doesn't. My old Huawei Y300 has a solid ~18Mbps when tested at the same spot.
Then again also the phone reception randomly drops from 3 bars to 1 to just go back up to 3 all within 1-2 seconds. (which might be unrelated but coincided with having higher Wi-Fi speeds)
Here's hoping for a software bug....
Cheers.
---------- Post added at 02:57 AM ---------- Previous post was at 02:37 AM ----------
There is one thing that is rather consistent though:
Whenever the display turns off during the Deadspot test, WiFi drops e.g. from 40Mbps to ~8Mbps. I first observed it by chance and then switched off the display on purpose several times while the app was running...
In the WiFi settings it's set to always keep on, so that shouldn't be the issue...

@tuatara42
I think i noticed sth similar, i had map downloads for navigation, around 2gb of data, it was half done in a few minutes but when it gone into standby mode and i woke it up 10 minutes later it barely progressed, so that means the wifi must have been slower.
That gets me a bit of hope that it´s "just a software problem".

I just tested the speed right next to the router:
Same speed, no improvement, 1-4Mbps.
Full speed with the Y300.
Actually I'm pretty sure WiFi was much better in the beginning, before the latest COS updates...

COS could be part of the problem, with CynaogenMod on my old phone I have the same problem with wifi speeds when the screen is off.

I just did a rough test using Wi-Fi Deadspot. At about 7.5m, through four very solid brick walls, from my 2.4 Ghz router I got 32.49 Mbps with my Z1, and 27.74 Mbps with my old N4. So WiFi is fine for me.

Which COS12.1 version are you on?

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?

4G Speed

Hello,
I have my oneplus 8 Pro for 3 days now.
I m facing my first issue (i m not sure if it s the device or my operator)
Since i switched the phone i'm facing some problems about my 4g connection. I noticed that i have no speed problems on wifi.
But on 4g the internet conection seems to lag:
It is very variable, sometimes apps take a long time to open, sometimes not. Did a speed test, and results are variable:
For example:
1st Test: download: 0.71 mbps upload 7.24 mbps
5 minutes later: 50 mbps, upload 1,84 mbps
Now i m not sure if it is the operator whose in fault or the new device. Network should be stable (i m in main city) and rarley faced similar problems here.
Is it possible it is the device?
Thx for your help

Didn't use mine on 4G a lot but when I did I had no problems so far. Just made a speed test and had 160 down and 20 up. Will make a couple of tests through the day and come back to you on the results

I tested it all through the day yesterday and today and there was some fluctuations between 100 and 200 mBits download. But that's definitely due to the network. The phone seems to work alright for me.

[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.
Click to expand...
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.
Click to expand...
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
Click to expand...
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/