[Q] Slow WI FI at 2.4Ghz networks - Samsung Galaxy A51 Questions & Answers

It seems to be a Bluetooth and WI FI interference, tried reseting the network configuration but still nothing.
Any help?

thought I was the only one! I always have to choose a 5 GHz network in order to get useable wifi when using bluetooth (which I need for our Corona warn app)
would love to get an answer too

Frau Son said:
thought I was the only one! I always have to choose a 5 GHz network in order to get useable wifi when using bluetooth (which I need for our Corona warn app)
would love to get an answer too
Click to expand...
Click to collapse
Unfortunately you are not alone.
I read about many cases, even with S10 or other models. Probably is a software issue.
So, in your case, works as it should when turning off the Bluetooth?
The WiFi network at work is 2.4 Ghz only, so no workaround for me.
Was looking for a way to force software updates, maybe with an India VPN, they get faster updates there.
Good luck.

Related

[Q] Xoom Network Issue

I have a Wifi Only Xoom and for the most part, it works great. Especially with the new ICS update. However, when i come into work, i am unable to get more than 400 kb/s on download speeds. If i turn my data off and my wifi on using my Droid Bionic, i can meet or beat 15 mb/s down so i know its not the work network. This started happening before the OTA ICS update but even with the update, it still happens. Since the update, i have done a factory reset of my device but still cannot get anything for download speeds. Iv talked with our network team at work and they said that they dont throttle anything on the particular wifi network im connected to so that isnt it either..
almost 100 views and no responses, anyone? Bueller? Bueller?
Sorry for the non-answer, but if you're going to complain about people viewing and not replying, then maybe should have used a better title for your topic other than "Xoom Network Issue."
12059350 said:
I have a Wifi Only Xoom and for the most part, it works great. Especially with the new ICS update. However, when i come into work, i am unable to get more than 400 kb/s on download speeds. If i turn my data off and my wifi on using my Droid Bionic, i can meet or beat 15 mb/s down so i know its not the work network. This started happening before the OTA ICS update but even with the update, it still happens. Since the update, i have done a factory reset of my device but still cannot get anything for download speeds. Iv talked with our network team at work and they said that they dont throttle anything on the particular wifi network im connected to so that isnt it either..
Click to expand...
Click to collapse
what do you get at home or somewhere else?
you try forgetting the network?
turn off bluetooth and try once
You're on a shared network at work, there are multiple factors that would limit your speed.
Number of users on that access point / WLAN
Bandwidth limitations for WLAN users
Proximity to AP
Other WLANs broadcasting on the same frequency
And more...
My first suggestion would be to sniff the air with Wifi Analyzer by Farproc and see if you're connected to the best AP on the work network.
Still no luck..
After reading some replies, here are my troubleshooting notes in response to your ideas (sorry for the novel):
I have completely reset it to factory defaults so iv actually done more than forgetting the network. Bluetooth has been off since it was wiped.
We have so many APs around the building that i could throw a rock and hit one no matter where im standing in the building and signal has never been an issue. I did get Wifi Analyzer but none that it picked up were that bad in signal. On the same note, i walked around the building doing random tests in several locations, none yielded any better speeds. One more reason that i dont believe this is the issue is that when i do theses tests, download speeds stink, but upload does very well. So that tells me that signal strength is a non-issue and as stated earlier, there are no limitations on this WLAN.
I can test other devices side by side at the same time and they test great while my xoom falls on its face. so I am absolutely positive that the problem doesn't lie with the work network. every other tablet, smartphone, laptop user can get excellent speeds (in the same location as my xoom), except my Xoom.
At this point i am at a loss.. any additional help is greatly appreciated!
YES! I'm not crazy. I bet you have cisco access points.
I posted about this on another thread. It appears that ICS and that particular access point has a major bug. I have one at home. I posted on motorola here
https://forums.motorola.com/posts/f3146e9b0a?start=1#comment562091

[Q] Wi-Fi hotspot ?

If you want to turn your mobile phone to wi-fi hotspot, when somebody connects to it he will use your 3G connection to search the web.
But I was wondering is it possible to connect with your phone to wi-fi (router), and then turn your phone to hotspot, and when somebody connects to it to use wifi connection, not 3G.
Can somebody help me, if anything like this is possible or exist?
I don't really know what would be the point on connecting your phone to wifi and then your friend's phone, assuming you both are in the same place, connected to your phone.
Why not just both to the wifi?
I think it's not possible to have wifi hotspot connected to wifi, have you tried though?
If you try and it works then there you go, but i think it's slightly pointless
hrvoje334 said:
But I was wondering is it possible to connect with your phone to wi-fi (router), and then turn your phone to hotspot, and when somebody connects to it to use wifi connection, not 3G.
Click to expand...
Click to collapse
I'm not aware of any smartphone that makes this possible. The reason for this is the operation of the wifi devices: they're not built to support multiple networks at once. In 3G-wifi-tethering scenario the different networks use separate radios so using both at once is possible and even required for the scenario of using normal telephony functions while moving data through wifi.
Your scenario sounds a bit funny to me as well , why would you do such thing?Working around encryption or something?
I was asking about this beacuse of distance, I can't reach router signal from my room, and i was thinking if this could be a solution. But I didn't expect it's possible, just asked. Thank you anyway
So you'd be using one of the phones as an access point? lol, you should just buy an AP in any computer shop / Amazon for example, they're not too expensive, put it in a place more near your room and you'll have a stronger wi-fi signal
Astrofrigo said:
So you'd be using one of the phones as an access point? lol, you should just buy an AP in any computer shop / Amazon for example, they're not too expensive, put it in a place more near your room and you'll have a stronger wi-fi signal
Click to expand...
Click to collapse
or maybe you buy a powerful antenna for your modem (maybe 10 Db Antenna) so your segnal will be more powerful ??
I know I can buy that but I wanted to do this just for a little experiment
Can you just go to settings and turn3g off
Sent from my Kindle Fire using xda premium
Have you tried usb tethering while connected to wifi..don't know if it'll work, but I'm wondering myself
Sent from my Sensation using XDA App
AFAIK its not possible.
I also heard it is one WiFi connection only so you would need some other form of tethering.
Sent from my Transformer TF101 using Tapatalk

WiFi 5 Ghz issues

I've noticed whenever I connect to a 5Ghz network, it's complete garbage. At my house, when I connect to 2.4 Ghz I get a consistent speed of around 75mbps, when I switch to 5 Ghz, I can't get more than 20 consistent. Sometimes it works super quick for a second, and then anything I try to do, web surfing, videos, downloading apps etc.... just suddenly stop as if I have no connection and never start again.
No issues here with 5ghz - can only suggest resetting router and phone, otherwise perhaps you have a faulty handset.
Also no problems here. I find the range off the antennas great.
Did several speedtests and no drop outs.
Just got mine and AC 5ghz works great. Getting 235/23 mbs on my home internet.
I have the same issue. Inconsistent connection and slow speeds on 5ghz, only way to fix is a router restart, but then if i turn off WiFi and re-enable, the problem returns. Possible IP issue?
When I received the phone 2.4ghz was fine (110/110) but 5ghz was not (550/3).
I had to go to setting > WiFi > Advanced (in the "..." menu near the gear on the upper right corner) and uncheck Wi-Fi optimization.
Then I got 550/250mbps
Not sure if it's relevant to your problem, but you could try that.
Good point. Seem to remember something similar on the 10 too. Thanks!
You're welcome Hope it will solve your issue.
Unfortunately, that didn't work. Got a replacement handset yesterday, just to be sure that it wasn't the phone, same problem happens?!
I use a Linksys router, if the op is still on the thread, what about you? Have no issues on other 5ghz networks. Well, the other 2 that I've connected to.
andybg40 said:
Unfortunately, that didn't work. Got a replacement handset yesterday, just to be sure that it wasn't the phone, same problem happens?!
I use a Linksys router, if the op is still on the thread, what about you? Have no issues on other 5ghz networks. Well, the other 2 that I've connected to.
Click to expand...
Click to collapse
I think I remember a bug with some Android phones on 5Ghz if IPv6 broadcasting was enabled in the router. Are you using this? Tried disabling it?
wnp_79 said:
I think I remember a bug with some Android phones on 5Ghz if IPv6 broadcasting was enabled in the router. Are you using this? Tried disabling it?
Click to expand...
Click to collapse
Thanks, i'll give that a try. I've never had this issue with any other phone, it's very odd and actually frustrating. While I can fix it at home, I wont be able to modify router settings when out and about, so if I struggle to get WiFi on the move, i'll be paying a fortune for data, which may force me to return the phone.
Just tested mine with Virgin Media router and WiFi optimisation turned on. Maxed out at 220Mbps
andybg40 said:
Unfortunately, that didn't work. Got a replacement handset yesterday, just to be sure that it wasn't the phone, same problem happens?!
I use a Linksys router, if the op is still on the thread, what about you? Have no issues on other 5ghz networks. Well, the other 2 that I've connected to.
Click to expand...
Click to collapse
I'm noticing issues on a Linksys router as well. My wife's old M8 had an issue that would go away when Bluetooth was turned off.
I messed with settings tonight and it seems more stable. I just made 2.4 and 5 on SSID, and changed all band settings to Auto.
*Shrugs
Sent from my HTC U11 using XDA-Developers Legacy app
If its happening on other connected devices on your wireless network either 2.4 or 5Ghz try changing Router channels.
I've seen this happen on 2.4Ghz. Turns out since I lived in a pretty Wifi congested area the channel my router kept picking as "The best" was actually 6 and all the routers default to that channel. Literally that frequency was so bugged down my internet went from hitting 60-80Mbps down to Kbps. Wifi Analyzer showed all 12 channels were pretty full. I switched to 5Ghz only and immediately saw a difference, but the few channels I do have on my router are getting congested nowadays too.
Nowadays whenever my phones Wifi speeds hit the floor I do speedtest on other wifi devices and Ethernet speeds. If theres a significant difference I quickly use Wifi Analyzer to see if its time to switch channels.
when i got my htc u11 unlocked i had problems with the wifi not connecting at all or if it did it would disconnect. i found that there was a software update so i downloaded it on my mobile data. once installed everything started working correctly. mine will connect at 866mhz to my dlink-879 ACN router
The ivp6 thing or whatever is what I did when I got the m9, it wouldn't connect to my wifi at first and it was 5ghz
Sildran said:
When I received the phone 2.4ghz was fine (110/110) but 5ghz was not (550/3).
I had to go to setting > WiFi > Advanced (in the "..." menu near the gear on the upper right corner) and uncheck Wi-Fi optimization.
Then I got 550/250mbps
Not sure if it's relevant to your problem, but you could try that.
Click to expand...
Click to collapse
I forgot about that option. Had issues with my 10 when it came out a d that fixed it, so far it's working on my 11.
Still having issues with this. Tried above suggestions, not specified a channel, currently set to auto. My M9 and 10 have no issues holding a fast connection. Getting a bored of it now, as trying to stream Le Mans and it constantly cuts signal.
andybg40 said:
Still having issues with this. Tried above suggestions, not specified a channel, currently set to auto. My M9 and 10 have no issues holding a fast connection. Getting a bored of it now, as trying to stream Le Mans and it constantly cuts signal.
Click to expand...
Click to collapse
Yea my problems still exist as well. Were you the one with a Linksys router?
Sent from my HTC U11 using XDA-Developers Legacy app
riggsandroid said:
Yea my problems still exist as well. Were you the one with a Linksys router?
Sent from my HTC U11 using XDA-Developers Legacy app
Click to expand...
Click to collapse
Yep, using Linksys.

Sticky or Slow WiFi issue...?

Hi Guys,
My return to HTC from the Rezound days to the U11 have been less than smooth, it seems. First I have the strange SD card corrupt issue... And now I've got this "sticky" WiFi issue...
Let me try to explain:
So, I'm on Stock phone, straight set up as I got it from Amazon. My Internet bandwidth speed tests around 250mbps on an average. And the speeds remain the same when I experience the issue. Essentially what happens is that randomly my internet starts to "stick" meaning, I'd click on a link, it'll take forever and a half and then the page loads out of nowhere. Similarly, I'd be syncing files to Google Drive and my file upload or download starts crawling ?...
The fix: Toggle WiFi on and off and starts flying again! I haven't noticed the issue while on data (I think)...
I have optimizations off for WiFi. WiFi stays fast on other devices... So I'm not sure what's going on? Anyone else experiencing this?
Thanks!
Haven't experienced it for now on 11.
WiFi was something "messy" on my 10, but all good so far on 11.
Might be some router compatibility issues, from top of my head and without first morning coffee see if it happens on both 2.4 and 5 ghz frequencies and if you can disable ipv6 on your router..
ProFragger said:
Hi Guys,
My return to HTC from the Rezound days to the U11 have been less than smooth, it seems. First I have the strange SD card corrupt issue... And now I've got this "sticky" WiFi issue...
Let me try to explain:
So, I'm on Stock phone, straight set up as I got it from Amazon. My Internet bandwidth speed tests around 250mbps on an average. And the speeds remain the same when I experience the issue. Essentially what happens is that randomly my internet starts to "stick" meaning, I'd click on a link, it'll take forever and a half and then the page loads out of nowhere. Similarly, I'd be syncing files to Google Drive and my file upload or download starts crawling ?...
The fix: Toggle WiFi on and off and starts flying again! I haven't noticed the issue while on data (I think)...
I have optimizations off for WiFi. WiFi stays fast on other devices... So I'm not sure what's going on? Anyone else experiencing this?
Thanks!
Click to expand...
Click to collapse
what model wifi router? I have the same problem on my home router, no issue at any of my work routers.
OMJ said:
what model wifi router? I have the same problem on my home router, no issue at any of my work routers.
Click to expand...
Click to collapse
Thanks for your response. I believe it's the Comcast XB3 the big black router with the phone lines and 4 computer ethernet ports and etc... In the background, it might be a Cisco router... Have you found a fix for this?
Thanks!
ProFragger said:
Thanks for your response. I believe it's the Comcast XB3 the big black router with the phone lines and 4 computer ethernet ports and etc... In the background, it might be a Cisco router... Have you found a fix for this?
Thanks!
Click to expand...
Click to collapse
mines a different model...I've reported it to HTC but no fix yet
I've got Linksys at home. Are you seeing errors in logs on phone?
What did you report?
Sent from my HTC U11 using XDA-Developers Legacy app
OMJ said:
what model wifi router? I have the same problem on my home router, no issue at any of my work routers.
Click to expand...
Click to collapse
OMJ said:
mines a different model...I've reported it to HTC but no fix yet
Click to expand...
Click to collapse
Yeah man... What a shame... Potential to be a great phone otherwise! The SD card issue and now this WiFi issue is now driving me pretty annoyed! LOL!
riggsandroid said:
I've got Linksys at home. Are you seeing errors in logs on phone?
What did you report?
Sent from my HTC U11 using XDA-Developers Legacy app
Click to expand...
Click to collapse
Do you have this issue too bud?
ProFragger said:
Hi Guys,
My return to HTC from the Rezound days to the U11 have been less than smooth, it seems. First I have the strange SD card corrupt issue... And now I've got this "sticky" WiFi issue...
Let me try to explain:
So, I'm on Stock phone, straight set up as I got it from Amazon. My Internet bandwidth speed tests around 250mbps on an average. And the speeds remain the same when I experience the issue. Essentially what happens is that randomly my internet starts to "stick" meaning, I'd click on a link, it'll take forever and a half and then the page loads out of nowhere. Similarly, I'd be syncing files to Google Drive and my file upload or download starts crawling ...
The fix: Toggle WiFi on and off and starts flying again! I haven't noticed the issue while on data (I think)...
I have optimizations off for WiFi. WiFi stays fast on other devices... So I'm not sure what's going on? Anyone else experiencing this?
Thanks!
Click to expand...
Click to collapse
hi. i have the exact same problem as you but only on the 5ghz band. no option to select just 2.4 GHz band is a letdown. i use a virgin media hub 3.0 CH7465, ipv6 in stateless mode. had to disable 5ghz band from router to use the phone on wifi. no issues with mobile data. another issue, unrelated, is the vibration feedback on key press every now and again.
luvdog1st said:
hi. i have the exact same problem as you but only on the 5ghz band. no option to select just 2.4 GHz band is a letdown. i use a virgin media hub 3.0 CH7465, ipv6 in stateless mode. had to disable 5ghz band from router to use the phone on wifi. no issues with mobile data. another issue, unrelated, is the vibration feedback on key press every now and again.
Click to expand...
Click to collapse
Thanks for reporting and sharing, friend... I'm wondering why more people aren't seeing this or we just got a bad unit? Hopefully HTC finds out and does something about it... ?
Hello !
I am Naphtaline, owning a Sony Xperia XZ Premium and we are experiencing some of your issues there too.
It looks-like the problem could be related to Snapdragon 835 or Android Nougat but we can't be sure yet.
While our problem are not always exactly the same as you, we can say that it could be possible that there are Wifi issues on every snapdragon 835 based device yet on the market.
So, I made a survey to help us understanding this problem. We could then send the results to our brands to help them resolve it.
Please share this link to every people you know owning a flagship device, even if they don't experience the issue. This is very important !
If there are moderators here, if you could make a pinned topic about this survey, this would be marvelous !
https://goo.gl/forms/xePus2lCrjrBjk9b2
Thank you !
this issue is hard to replicate, I tried doing 20 or so speed tests yesterday trying to get it to fail but wouldn't...I know in the past when the issue was present, I switched to 2.4 with no change...I don't have this issue on most routers, only my home router (TP-Link Archer C7) but there again, the issue is so intermittent that it's possible it could happen on other routers but just not noticing.
Pretty sure I've been having this issue since day 1, but I'm trying to tell myself it's just my router, which it's not, as it happens on any wifi network. Also, phone suddenly decided to drop my Verizon signal, and now it won't reconnect. HTC has no fixes for either issue, and Verizon says it's HTC's fault for the signal. Definitely my last HTC phone.
With 5Ghz, if i go to a room little far from where the router is, it would not work but the Speedtest would show amazing speed. Whereas the 2.4Ghz works fine in that room.
FWIW guys the dropped connection effect is happening on my 2.4 SSID as well... Only, momentary fix is toggling off and on.... Have any of you tried a replacement? Maybe we got flawed units?
I am also experiencing this issue and it's driving me nuts! The quick fix is to toggle WiFi on/off, but I shouldn't have to do that.
I have the Xfinity XB3 router, but I do not think it's the router because I also have an S7 Edge where I am not experiencing this issue. I'm going to try using the 2.4 SSID, but from what I've read in this thread so far, it does not sound like that's going to help.
I too am experiencing this issue on the 5Ghz channel of my router. It seems to work initially, but only after a few minutes, it starts to have connection issues. When I switch to the 2.4 Ghz channel, it works just fine, always, no connection issues whatsoever. I just did the survey. Thanks for compiling this, I hope a fix is determined. I have the US Unlocked version, Viper U11 1.3.0 w/ Magisk v12 and module v1.10.1.
The problem is wifi drop-off. Even though the device is showing a good signal the data throughput is weak. If you move closer to the router the wifi will jump back into life. Its due to not having an iso standard for signal strength displays.
Beamed in by telepathy.
shivadow said:
The problem is wifi drop-off. Even though the device is showing a good signal the data throughput is weak. If you move closer to the router the wifi will jump back into life. Its due to not having an iso standard for signal strength displays.
Beamed in by telepathy.
Click to expand...
Click to collapse
You sure about that? I can be 10' from the router and have the issue
OMJ said:
You sure about that? I can be 10' from the router and have the issue
Click to expand...
Click to collapse
Same here..
For me it happens only with my home router networks (Linksys WRT1900ACS).
I found that this drop issue only happens when I'm far from my router when the signal is below -65dBm and only if the 5GHz network is on 80MHz-bandwidth and 2.4GHz is on 40MHz-bandwidth.
Lowering to 40MHz for 5GHz and 20MHz for 2.4GHz solves this problem completely for me.
Two important notes:
1) This behavior only happens with the U11. With other devices like the G6, iPhone 6s and etc. everything works fine at the same time when my wifi networks are on 5GHz 80MHz and 2.4GHz 40MHz.
2) On other 2.4GHz 40MHz-bandwidth networks that I've connected (other than my home's) I don't experience this drops at all with the U11, even when I'm very far away from the router and the signal is very weak.
So this problem seems to be only between the U11 and some routers on some configurations. Very strange

Oneplus 7 pro hotspot not turning on with 5 GHz band after Android 10 update 10.0.1

Since updating to Android 10 (10.0.1) the phone is not able to perform turning on the hotspot using the 5 GHz band in the hotspot settings. (2.4 GHz band works just fine).
When on Pie, It was working flawlessly. I took the OnePlus OTA update and didn't perform any wipe or factory reset after the update, except for wiping the cache. (This is the only prominent issue that I have after the update, everything else is working rather as good or better).
I didn't find any relating topics through Google search so I decided to start a thread and see if anyone else has the same issue?
I just tried it, no problems for me. I am on 10.0.1 GM21AA, totally stock. Good luck...
Change the fibre Wi-Fi settings page to this one you must make the Chanel under 53 manually not auto then your phone will contact to the 5GHz
Works for me on 5GHz with xXx and Magisk.
i6rb said:
Change the fibre Wi-Fi settings page to this one you must make the Chanel under 53 manually not auto then your phone will contact to the 5GHz
Click to expand...
Click to collapse
The issue is the phone not turning on its own 5 GHz hotspot, not that it cannot connect to a 5 GHz WiFi band. Thanks for the feedback though, might come in handy somewhere else.
Po0yAn said:
The issue is the phone not turning on its own 5 GHz hotspot, not that it cannot connect to a 5 GHz WiFi band. Thanks for the feedback though, might come in handy somewhere else.
Click to expand...
Click to collapse
Yeah, once again, it works for me. I turned on WiFi hotspot, AP Band 5 GHz, unplugged my computer's network cable, connected to the phone's hotspot and can connect to the internet. I am connected right now while replying. Let me know if there is anything you want me to try. I am on T-Mobile US, don't know if that makes any difference - I suspect not. Just fyi, when I upgraded to 10, I did a complete factory reset - totally wiped the phone. Is that not an option for you, complete wipe? Some people cannot for whatever reason, but sometimes it cures weird problems like this.
What is your location? Just to be sure, if you select AP Band 5 GHz, you cannot turn WiFi to ON, but if you select 2.5, it does turn ON?
tperki said:
Yeah, once again, it works for me. I turned on WiFi hotspot, AP Band 5 GHz, unplugged my computer's network cable, connected to the phone's hotspot and can connect to the internet. I am connected right now while replying. Let me know if there is anything you want me to try. I am on T-Mobile US, don't know if that makes any difference - I suspect not. Just fyi, when I upgraded to 10, I did a complete factory reset - totally wiped the phone. Is that not an option for you, complete wipe? Some people cannot for whatever reason, but sometimes it cures weird problems like this.
Click to expand...
Click to collapse
Yeah I completely onboard with full wipe, specially after a major update like this which is jumping to a new version of Android, but unfortunately I don't have time for that, and also I wanted to see how good the update is of you're a regular user and don't usually reset the phone after an update. As I said OnePlus has done a great job with this update and I have no major issue.
Again thanks for confirming this for me.
tperki said:
What is your location? Just to be sure, if you select AP Band 5 GHz, you cannot turn WiFi to ON, but if you select 2.5, it does turn ON?
Click to expand...
Click to collapse
Yes, no issues while using 2.4 GHz band.

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