Android 9 (Oxygen 9.02) wifi keeps switching between 5ghz and 2.4ghz connection - OnePlus 6 Questions & Answers

Hey everyone,
So I've been expernecing this problem for over month. Basically im connected to my wifi on 2.4ghz and suddenly my connection will drop and I check that its now connecting to 5ghz but it doesn't actually connect to it its just keeps connecting and disconnecting every second until it finally connects back to 2.4ghz. And then after few minutes of strong connection ill drop again and same thing.
Im only experiencing this at work. There isn't 2 different ssid for 5ghz or 2.4ghz just one ssid, I was able to find out that they are using dual band router so I can't change anything the router part. is there an app or some setting I can toggle with to enforce 2.4ghz band only? Ive already turned off smart switch and scanning but problem still here.
Thanks in advance!!

Related

3G and Wifi?

Hey, so I just picked this up but I can't connect to 3G or Wifi?
Have you gone to the settings menu and wireless, turned on wifi, and then selected a network? Are you using your own wifi? Is there wifi available where you are? Is there 3G available where you are?
We need to know the steps you've tried so we can help you.
Wifi - it tells me it is connected, but cannot browse unless I disconnect wifi when it happily connects using 3G. I can check the router and it has the Samsung's MAC address on its list of connected devices. Anyone else having trouble with wifi?
-Atin
Someone else was having problems with 5ghz vs. 2.4ghz in their router. Are you broadcasting wireless-N at 5ghz? Have you tried rebooting the router, and a battery pull on your phone?
I don't think I am broadcasting at 5GHz - what should I be broadcasting at? Yuck, I turned off wireless-N so it is only broadcasting b/g and now it works...
Weird - now I turned wireless N on too so the router is broadcasting a/n-b/g and everything is happy. I actually specifically turned *on* 5Ghz/2.4Ghz too so it has both (Airport Extreme router) that it will talk and the router tells me that the Captivate is talking 802.11b/g/n and now the phone is happy. Thanks for pointing me in the right direction - it was driving me nuts because I could see the wifi at Starbucks!
-Atin

[Q] Help! Very bad wifi signal at 2,4Ghz?

Hello all,
I just bought a Oneplus One.
But when I tried to connect to my home Wifi (which is 2,4Ghz, and no options to use 5Ghz) it didn' t saw my router.
Now I downloaded Wifi Analyser, This is showing me that I only have a connection with my router if my phone is only a few centimeter/inches away from the router.
This problem is not in my router because i have this with all the wifi connections that are using 2.4Ghz.
All the wifi connections that use 5ghz are working fine.
I've already changed the channels on my router, which didn't make any difference.
I also did a factory reset, still nothing.
I also changed the settings of my phone to only use 2,4Ghz wifi.
I set my wifi performance to his max but still only connection with my router if I hold my phone a few centimeter/inches away from it.
Does anyone have any ideas that I can try? Its really annoying that I can use wifi
Thanks for your time!

5ghz Wifi not detecting S8+ (G955FD)

As u all know S8+ have Wi-Fi 802.11 a/b/g/n/ac, but Mine S8+ is not showing 5ghz wifi band.
Please help me out that how to resolve this issue.
It's not clear what are you asking here. Almost any phone can connect to a 5Ghz network, your router must be dualband
I have cisco E4200 dual band router with both 2.5ghz and 5ghz frequency. As u say almost all phones working fine but mine s8+ even not detecting or showing 5ghz band network. I tried well like to add munually network but issue still there.
I too have a S8+. However, it will not detect my 5G wifi, though my Galaxy J7 can both see and connect to it.
Both are running Android 8.0 and Samsung Experience 9.0
Pls advise
I have the same issue. After I tried and checked the device in many ways, I finally found out that it is related to the mobile signal. If you turn off the mobile data off, 5GHz will show up on your wifi list.
This is how I do.
1. Turn on the Airplane mode.
2. 5GHz wifi shows up. Connect to the AP.
3. Turn off the Airplane mode. The 5GHz AP remains connected.
--Takuto
Change the channel setting for you 5GHz to something near 153. S8+ does not see some lower channels.
gaujvsjks said:
I have the same issue. After I tried and checked the device in many ways, I finally found out that it is related to the mobile signal. If you turn off the mobile data off, 5GHz will show up on your wifi list.
This is how I do.
1. Turn on the Airplane mode.
2. 5GHz wifi shows up. Connect to the AP.
3. Turn off the Airplane mode. The 5GHz AP remains connected.
--Takuto
Click to expand...
Click to collapse
Finally!!!!!!!!!!!! I can connect to 5GHz network.
THANKS ALOT Gaujvsjks!!!
I am using Jio SIM in India which uses the VoLTE technology, so maybe that's the reason my S8+(SM-G955FD) won't even show any 5GHz networks in the settings.
Thanks!
Thanks
:good:
gaujvsjks said:
I have the same issue. After I tried and checked the device in many ways, I finally found out that it is related to the mobile signal. If you turn off the mobile data off, 5GHz will show up on your wifi list.
This is how I do.
1. Turn on the Airplane mode.
2. 5GHz wifi shows up. Connect to the AP.
3. Turn off the Airplane mode. The 5GHz AP remains connected.
--Takuto
Click to expand...
Click to collapse

wifi connection problemp - solved

We have set up a WiFi router at our summer house and all devices bar my OnePlus 8 connects without problem to the WiFi. My phone connects to the WiFi but not the internet. Have restarted the phone and removed and added the WiFi connection but no luck. Any idea what's going on?
I had this problem with my oneplus 8, European version, where at times internet connection would drop, but wifi was still connected so the phone was in effect blocked since I use VoWiFi both voice calls and data was blocked.
The problem turned out to be between my router and the oneplus 8. I had to go into the settings of the router and disable a feature called "band steering". This setting will make the two different wifi gateways inside the router, the 2.4 ghz and the 5 ghz appear as one and the same with the same SSID name. This is supposed to simplify setting up devices with wifi but is known to cause problems sometimes.
As soon as I had separated the two and given them different names, I no longer have a problem with internet access dropping from the wifi.
I have no idea where the fault happens, I only know that I have had to disable band steering with another router I had before. I think this feature might be a bit unstable.
No idea what's happened but this morning it just worked.

Force wifi to connect to only 5ghz

i am using a router which broadcast both 2.4ghz and 5ghz band using single SSID. how do i force my phone to only allow to connect to the 5Ghz wifi network. i cannot turn off the 2.4ghz band as there are other devices in my house that only support 2.4ghz or do i want to split the bands into 2 SSID.
Thank you.
i was able to split my router to 2 different SSID for both bands
In the past there used to be an option in advanced wifi settings that made the 5GHz "preferred" but Google took it out for some reason.
The disabling of the 2.4 GHz or having 2 separate SSIDs might be the only way right now (not sure for a rooted phone tho)
Sent from nowhere over the air...
Yes not sure why did Google remove that option. Any hidden secret code i.e. *#00*# etc that allowed us to make changes to network setting.
Some routers have band steering which will force devices to 5ghz if supported while keeping 2.4ghz for devices that can't.
Sent from my SM-N986U using Tapatalk
I turned off Auto Connect on my 2.4ghz, so it stays on 5ghz all the time.
Eagle 3 said:
I turned off Auto Connect on my 2.4ghz, so it stays on 5ghz all the time.
Click to expand...
Click to collapse
Mine only 1 ssid for both band. Seem like there is no solution and i had to split the bands into 2 ssid.
angka8 said:
Mine only 1 ssid for both band. Seem like there is no solution and i had to split the bands into 2 ssid.
Click to expand...
Click to collapse
I only have 1 ssid. Like I said, I turned off Auto Connect for 2.4ghz so it always stays on 5ghz.
Eagle 3 said:
I only have 1 ssid. Like I said, I turned off Auto Connect for 2.4ghz so it always stays on 5ghz.
Click to expand...
Click to collapse
thanks, but for me both the bands are broadcast into one SSID. which means i can only find one wifi connection and the wireless router will change the band connection based on the signal strength when i am moving around the house. it will change the connection to 2.4ghz when i am in some place where the 5ghz connection is weak. why i wanted to stay with 5ghz when the connection is weak because it give a much higher download/upload speed compare to the 2.4ghz connection which somehow got much weaker internet speed to the extent of unusable.
angka8 said:
thanks, but for me both the bands are broadcast into one SSID. which means i can only find one wifi connection and the wireless router will change the band connection based on the signal strength when i am moving around the house. it will change the connection to 2.4ghz when i am in some place where the 5ghz connection is weak. why i wanted to stay with 5ghz when the connection is weak because it give a much higher download/upload speed compare to the 2.4ghz connection which somehow got much weaker internet speed to the extent of unusable.
Click to expand...
Click to collapse
Buy a new router where you can separate them and then disable or turn off the 5ghz connection
Looks like this is quite an issue for N2Us. I have a 4 year old iphone and it stays connected to 5GHz in the same place and N2U reverts to 2.4. I have band steering and have been really well on all other devices. Issue lies only with N2U.
Snowleopard1900 said:
Buy a new router where you can separate them and then disable or turn off the 5ghz connection
Click to expand...
Click to collapse
Mine can separate them but since it is only affecting my phone, I hope the change can be on the phone instead. By separating them, I will need to configure all those devices that can only connect to 2.4ghz. e.g. ring peephole
Did you solve issue? Same problem here :/
Eagle 3 said:
I only have 1 ssid. Like I said, I turned off Auto Connect for 2.4ghz so it always stays on 5ghz.
Click to expand...
Click to collapse
Errr...you actually DON'T have one SSID but 2. The band is appended on the name and they are actually 2 different WiFi networks with different names so you could turn off auto-connect on the 2.4GHz one
I use the Wireless Mac Filter on my router to block 2.4Ghz Band for my phone mac address, so the phone can only connect to 5Ghz
If you are using a Samsung phone in the advanced settings for wifi, turn off use randomised MAC address and use the phones actual MAC. This fix has been tested on Netgear routers and works, phone will join the faster 5ghz and still be able to switch to 2.4 if you are at a distance from the router
SenatorDC said:
If you are using a Samsung phone in the advanced settings for wifi, turn off use randomised MAC address and use the phones actual MAC. This fix has been tested on Netgear routers and works, phone will join the faster 5ghz and still be able to switch to 2.4 if you are at a distance from the router
Click to expand...
Click to collapse
Thanks, this worked with Pixel 4a on ruckus WiFi as well!
angka8 said:
i am using a router which broadcast both 2.4ghz and 5ghz band using single SSID. how do i force my phone to only allow to connect to the 5Ghz wifi network. i cannot turn off the 2.4ghz band as there are other devices in my house that only support 2.4ghz or do i want to split the bands into 2 SSID.
Thank you.
Click to expand...
Click to collapse
This is what i did .
(It might give you an very easy option /idea .)
My current setup is a Nokia fibre router that has 2.4 ghz and 5 ghz bands
I bought a reasonable priced wifi mesh 'TP DECO M4 "then
connected it to my fibre router ( ethernet cable )
The TP wifi mesh comes with an Android app fo configure it (settings )
All i did was swicth off the 2.4 ghz band in app, for my TP decom 4 model .
So if i wand to use only 5ghz i connect to my TP DecoM4 ( which is connected to my Nokia fibre router)
My othe devices( that only use 2.4 ghz bands ) i connect dirrectly to my Nokia fibre router, that has 2.4ghz band active ...and also the 5ghz ,
So fo me its a matter of to switch 2.4 ghz on and off in the Android TPlink app .
Hope this give you an very straightforward option ?
good luck
see screenshots below
Hi...
I don't if you already solved you problem but, probably, if you have router which broadcast both band with the same SSID you have option, in router settings, called SMART CONNECT set to the "ON"...
I found a solution that worked for me, i am using a xiaomi router and a s21
Samsung S21 Ultra 5G not connecting to 5Ghz wifi channel
Hi folks . I have a Samsung s21 ultra 5g. I can connect to the 2.4ghz WiFi but more than often I can't seem to connect to the 5ghz wifi channels .I'll have my laptop right infront of me onnected to the 5ghz wifi channel , yet my phone won't be able to the same. My router is netgear nighthawk...
eu.community.samsung.com
"in the settings of your phone / Connections / Wifi / settings of your network put:
IP-DHCP Settings
Phone MAC-MAC address type"

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