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S21 Ultra Wifi issues

(Topic created on: 01-02-2021 08:22 PM)
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Kasim2409
Voyager
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So i got my S21 Ultra delivered on Friday and got everything set up however since then i've noticed it's been really slow loading things on my wifi - it's been normal when using mobile data. (i checked on my previous S10+ and it was all okay.) I then did a speedtest and got normal results - around 110mbps download speed but it's still the same slow speed when browsing or using social media such as Instagram for example it takes quite a long time to refresh & load stories. One other thing that has been constant is i keep getting this error pop up on my wifi settings saying Wifi "connected but without internet". I've attached a screenshot aswell. Is anyone else experiencing this problem or know any troubleshoots that can maybe fix this?

image


37 REPLIES 37
Kasim2409
Voyager
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oh no! Resetting network settings fixed it instantly for me. Have you tried any of the other stuff mentioned above...Maybe one of them might work?
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Onyx051
Journeyman
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Fixed it! Bit more complicated for me - I tried what another post had suggested and changed the WiFi freq channels my router was using. Hasn't dropped out since so I think it's sorted!
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Deimos87
Apprentice
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Hello. I got a S21 also. I get packet loss and disconnects on Amoung Us on 5GHz networks.

But trying out PingTools and FloodPing does not reveal any packet loss to the router.

I have tried from two other routers, same issue.

LeeMorris
First Poster
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same issue here. home WiFi speed is 300meg my s21 WiFi speed is 3 meg.
obviously an issue with the s21
Blankusername
First Poster
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Same issue. Resetting network does not fix. Flipping the wifi off then on instantly fixes it for a while then it comes back.

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Pkiely11
First Poster
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hi, how did you fix this as I'm having issues with my WiFi dropping in and out?
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Onyx051
Journeyman
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I fixed my issue by changing the WiFi channel on my router. I think there is an issue with the s21 as this shouldn't be a problem, but manually setting my channel to one with lower interference worked for me (here is a guide on how to do it https://www.hellotech.com/guide/for/how-to-change-wifi-channel-on-router)

To find the channels with the lowest inference, I used an app called 'Wifi analyser'.

Before you do this though, I'd recommend resetting your network settings on your s21 as mentioned above (it's buried in settings so just search for it)
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Onyx051
Journeyman
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See my reply to Kasim2409 above as let me know if this fixes it for you!
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Pkiely11
First Poster
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thanks, I did this too last Thursday and all was working great up until today, where the issue has reappeared. So annoying.
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KalyanNS
First Poster
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I have the same issue with my Samsung S21, did you find the solution for this?, or is only way is to take it to technical support ?

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