5ghz wifi hotspot doesn't work - Redmi K20 / Xiaomi Mi 9T Questions & Answers

Hello everyone,
As the title states the 5ghz wifi hotspot doesn't work. It may show that is enabled and all the relevant icons appear but no device ever is able to find the network. 2.4ghz works fine. I have the phone for about 2 years now and I really can't remember a point when it worked. In the meantime I have changed to miui.eu (the phone came with miui global) and it still doesn't work.
Could the wifi chip be faulty from the beginning? Do you guys have a similar problem? It's not really a huge deal but I'm just curious about what may have caused this problem.

Related

Nexus 4 wifi disconnecting

my nexus 4 connects to wifi for a few seconds and is really slow then. the wifi colour turns grey and is not working should i return it or is there a fix ?
wifi is controlled by kernel, are you on stock kernel or what are you using?
is it your router thats causing the problem? try it on another wifi network.
If you're talking about the Wifi going grey and not being connected to Google services but otherwise the internet works, this is a known issue that Google has acknowledged
http://code.google.com/p/android/issues/detail?id=40065
In the comment sections, a Google engineer has made a few posts and it's clear this affects numerous devices, which would mean wait on a fix, don't return it.
...
for my wifi issue i checked my wifi channel. it is usually ch11 or ch6 on default so a wifi analizier for besy ch and do the right setting. works great for me. i hope it would help someone.
plastikq said:
for my wifi issue i checked my wifi channel. it is usually ch11 or ch6 on default so a wifi analizier for besy ch and do the right setting. works great for me. i hope it would help someone.
Click to expand...
Click to collapse
Worked for me when I changed the channel on my router from 6 to 5. Thank you.
Help
Im also having wifi issues. Works fine with my router at home and was the same with router in work but suddenly the other day it wouldnt connect in work, now it just says "authenticating" and never actually connects.
Have switched the phone on and off but it does nothing. Other phones are all working fine with router, Samsung Galaxy S3 and Nokia Lumia 920.
Im using AOKP Jb Mr1 Build 2 Rom and stock kernel and havent changed either before or after the fault.

Wifi stays connected but loses internet access

After the upgrade to Lollipop on my Yoga 2 830, I'm noticing that the wifi gets no internet access even while connected every so often. I have to turn off and turn back on the wifi for it to reconnect. Is anyone else having this issue? I don't have any issues w/ any of my other devices connected to wifi.
I'm not on static IP, no issues with the router. I didn't have any issues on kitkat. Please share if you also have this issue. Thanks.
Thorin78 said:
After the upgrade to Lollipop on my Yoga 2 830, I'm noticing that the wifi gets no internet access even while connected every so often. I have to turn off and turn back on the wifi for it to reconnect. Is anyone else having this issue? I don't have any issues w/ any of my other devices connected to wifi.
I'm not on static IP, no issues with the router. I didn't have any issues on kitkat. Please share if you also have this issue. Thanks.
Click to expand...
Click to collapse
Hello!
Did you try connecting your device to another wifi network to see if the problem persists?
I have noticed something similar happening with my Xperia Z ultra after it upgraded to lollipop. I realised that it was happening only on the older wifi routers (I use an ancient Linksys WRT54G), but seems to have no problem with the newer ones.
Changing the channel of your wifi router might help alleviate the problem. I am not certain if it would work in your case, but if you do not have another router handy, this just might do the trick. If you are looking to change the channel, an easy guide is available here.
I hope this helps
I've got a Netgear AC1900 nighthawk with a netgear ex6200 range extender. The tablet is primarily connected to the 5ghz band on the nighthawk. I do have other routers but they are older. I might have to try to take it to work and see if I lose internet access.
I've changed the bands around and it does help. I've rebooted the router, rebooted the tablet, forgotten the wifi and so on. It's still happening after some time. By the looks of it, there are others that have experienced this on other devices. I haven't done a factory reset. I would prefer not have to go through the setup again.

Help with WI-FI. Can't connect to 5 GHz at all.

Hello Everyone.
I've got a problem with my WI-FI in my V20 that doesn't allow me to connect to 5GHz at all.
I'm in the UK with a virgin media super hub 2, I also tested it with a TP-Link C2 which is the one upstairs and nothing still. I know it's not my router as I have about 6 other devices which connects to 5GHz perfectly fine, so I know It's a problem with this device.
I have done everything I can think of to try and get it to work as well. I removed all security from the router. I tested it with another router. I used a WI-FI analyzer to see if the device picks anything up but unfortunately it doesn't find anything at all while my PC next to it can pick up 4 to 5. I also changed the channels of the WI-FI and still nothing except that it seen a few high frequencies which I couldn't connect to and the few that I did it doesn't connect to the internet at all. I've also reset the device, and updated the firmware. Still nothing has worked.
This is my 2nd V20 as my first one had the WI-FI problem as well and I hoped I just unlucky with that one and the replacement had exactly the same problem.
I brought it from ebay by the name of eglobalcentral-gb. They quickly got in contact and everything. Perfect communication. The 2nd device was also from this person as well.
The phone is also the H990DS duel sim version.
Thanks Ben

oneplus 8 pro wifi/bluetooth issues (with a tmobile sim)

So I may have come across something that may help someone else out as well...
Recently (as in less than 15 days) purchased a oneplus 8 pro from oneplus.com. When I first got it it was on android 10 and I was not able to connect to either my 2.4ghz wifi or my 5ghz wifi using WPA2. I had a oneplus 7 pro previously that still connects without issue. I had read elsewhere that the open beta was better so I tried that and it indeed was better but sometimes though I was connected to the wifi, no traffic would travel over the network and it would stall to the point that the only way I could do anything internet or network related was to go to my cellular data. I did the 'device mac' as opposed to random mac and that helped for a brief time however that even cause the same stall/lack of response issues.
Since I don't have much for 5g cellular where I am, I changed it to only look for 4g....still no improvement. On a whim, I disabled any and all security on my 5ghz wifi and low and behold I could connect. I wasn't about to leave either of my wifi networks wide open but also remembered the network I connect at work is also not wpa or any sort of protection so theres a hint as to how to 'fix' these issues. I then read someone about the possibility of having special characters in your wifi password can cause issues. I removed the ! in my old wifi password so it is now alpha numeric and have had no issues with my 5ghz wifi network. I have been able to stay connected with my 5ghz wifi WHILE bluetooth has also been abled and the speeds are roughly normal.
Try at your own risk but in summary:
1. upgrade to the open beta 2
2. disable 5g cellular connections
3. connect to your 5g wifi and make sure the password has no special characters in it as well as use device mac NOT randomized mac
4. perhaps success
With all the above being said, I do still intend on sending this phone back in hopes that I got a dud unit but I'll admit seeing these results makes me feel like its more of a software issue and certain incompatibilities with certain routers.
Just dropping what info I have discovered in hopes it helps someone out there...I would not normally endorse using NO password on wifi or a weak password, but for this phone it may be a requirement at least until the updates can come into play.
Thanks,
E|
I am backing everything up to go to Android 11 tonight, and I switched to a new WPA2/WPA3 router here, but my password has no special characters.
On Android 10, complete nogo, as using WiFi calling with a BT headset on 5ghz slows the network down so much, the other person can't hear you (no upload bandwidth).
I'll let you know how Android 11, OB2 works out for me.
If there are issues, I am going back to the OnePlus 7 Pro and selling the OP8 Pro.
Since I have not been using WiFi, I blew through 55Gb of data this month already so am subject to throttling, thanks OP8 Pro
MetroWestMA said:
I am backing everything up to go to Android 11 tonight, and I switched to a new WPA2/WPA3 router here, but my password has no special characters.
On Android 10, complete nogo, as using WiFi calling with a BT headset on 5ghz slows the network down so much, the other person can't hear you (no upload bandwidth).
I'll let you know how Android 11, OB2 works out for me.
If there are issues, I am going back to the OnePlus 7 Pro and selling the OP8 Pro.
Since I have not been using WiFi, I blew through 55Gb of data this month already so am subject to throttling, thanks OP8 Pro
Click to expand...
Click to collapse
You could try om a different router of someone else to pin point out if it's your router yes or no.
Sent from my IN2023 using Tapatalk
I did upgrade to OB2 a few days ago and wifi is generally better. But VOWiFi never works with a bluetooth headset - the other person can never hear me.
Also when streaming over WiFi the connection drops or stalls and causes rebuffering. I have confirmed these behaviors with 3 different routers.
Can anyone on TMobile (USA) confirm working VOWiFi while using a bluetooth headset?
Also 4G and 5G speeds slow down when on a call using bluetooth.
Maybe this is all due to qualcomm 865 chipset issues as the galaxy S20 users are having similar issues?
I had faced lots of stability and speed issues on the 5gz band. Received the OS11 update today and my issues seem to be resolved. So far the 5gz connection has been very stable, lightening fast speeds.

Wifi issues with no known fix....

I recently picked up an 8 Pro and an 8t.
Same issue.
Can connect to wifi, no internet.
Reset router, tried all different security settings, forced both on to 2.4 and 5ghz bands only, changed channels on the router, factory resets, used device MAC, Bluetooth off, etc.
No go. I can't get them to connect, period.
Asus AC86U and AC5300 in a mesh setup. I even took the mesh setup down and just used the 86u.
All other devices on my network have no issues, including a 6t, 7 Pro and a 7t. Just the 8 Pro and 8t. Both brand new, received this week. Updated to the latest official 11 OS from OnePlus.
20+ devices on the network with no issues.
I have searched the net high and low to resolve the issue. Plenty of reports of the same issues, no solid resolution. Plenty of bug reports sent to OnePlus.
Any known fixes would be great, that aren't listed above.
Your oneplus devices, are they rooted?
Or pure stock? Where did you get them? Completely official? Which variant?
Wifi being borked is a common symptom of having an incorrect boot.img installed, usually happens when rooting and using an incorrect patched boot.img, phone will boot and will appear ok but wifi won't work.
As the same symptom has happened on two identical devices i'd say there are two main possibilities off the top of my head.
1. If the devices have been unlocked and rooted, then they weren't done properly and have the wrong boot img
2. You have a limit set on your router, get a third phone and set up a hotspot, see if the wifi is functional to eliminate the phones, then just need to troubleshoot your router.
If the phones are pure stock and functional on other networks, and you can add an additional device to your router (one that hasn't been added before) then that's odd.
Did you change the name of your router and the wifi networks have synced over?
remove any previously saved wifi networks from both devices, then try again.
I have the same issue and no fix...
dladz said:
Your oneplus devices, are they rooted?
Or pure stock? Where did you get them? Completely official? Which variant?
Wifi being borked is a common symptom of having an incorrect boot.img installed, usually happens when rooting and using an incorrect patched boot.img, phone will boot and will appear ok but wifi won't work.
As the same symptom has happened on two identical devices i'd say there are two main possibilities off the top of my head.
1. If the devices have been unlocked and rooted, then they weren't done properly and have the wrong boot img
2. You have a limit set on your router, get a third phone and set up a hotspot, see if the wifi is functional to eliminate the phones, then just need to troubleshoot your router.
If the phones are pure stock and functional on other networks, and you can add an additional device to your router (one that hasn't been added before) then that's odd.
Did you change the name of your router and the wifi networks have synced over?
remove any previously saved wifi networks from both devices, then try again.
Click to expand...
Click to collapse
Both phones stock, new out of the box.
Connected both phones to a Hotspot to get them updated to the most recent official releases.
Still the same issues.
As stated in OP, I have searched the net high and low for a fix.
Seems to be a common problem, that hasn't really been addressed.
I don't rule out my network, but again, what more can I change that I haven't already?
20+ devices on the same network, without a problem.
Just doesn't make sense.
shanetrain said:
Both phones stock, new out of the box.
Connected both phones to a Hotspot to get them updated to the most recent official releases.
Still the same issues.
As stated in OP, I have searched the net high and low for a fix.
Seems to be a common problem, that hasn't really been addressed.
I don't rule out my network, but again, what more can I change that I haven't already?
20+ devices on the same network, without a problem.
Just doesn't make sense.
Click to expand...
Click to collapse
So you were able to connect to a hotspot over WiFi just not your router? Have you tried other routers? I recently switched my router and my oneplus (which worked fine on the previous router) I ky connects to the 5ghzfrequency. Will not connect to 2.4ghz no matter what. It also works fine with the routers at work. Don't know why, I've tried everything, but it refused to connect at that frequency on that specific netgear router.
Hi, try to change between WPA2-PSK/TKIP or AES settings.
shanetrain said:
Both phones stock, new out of the box.
Connected both phones to a Hotspot to get them updated to the most recent official releases.
Still the same issues.
As stated in OP, I have searched the net high and low for a fix.
Seems to be a common problem, that hasn't really been addressed.
I don't rule out my network, but again, what more can I change that I haven't already?
20+ devices on the same network, without a problem.
Just doesn't make sense.
Click to expand...
Click to collapse
Hang on if your phones were able to connect to a hotspot then it's your router or the signal from your router.
A WiFi hotspot is a normal WiFi signal so there's nothing wrong with the phones.
I'd say it's the router.
Go to 192.168.0.1 on a web browser on a device connected to your router, check the device list, is there a max allowed devices? 20 isn't an uncommon limitation.
Delete the WiFi SSID from your phone (forget network)
mikewilc said:
Hi, try to change between WPA2-PSK/TKIP or AES settings.
Click to expand...
Click to collapse
OnePlus is capable of all of them.
But you're on the right track, it's the router.
It has to be
Apologies, i meant on router check security settings of wifi.
mikewilc said:
Apologies, i meant on router check security settings of wifi.
Click to expand...
Click to collapse
Yea it'll be a setting or a limitation has been reached..

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