Wifi S25 Ultra Issue: Randomly disconnects and then connects again.

[Tee93]

How to resolve this issue as my s25 Ultra wifi disconnects randomly and then connects back again.

[Tourbillon De La Vie]

Connects to what mobile, WiFi 

[arianwen27]

What wifi version does your router use? (The little number in the wifi icon on your phone).

My phone does the same thing under certain conditions. I put it down to me using wifi 7.

To be exact. If I go downstairs and play youtube, the phone will say no Internet, then reconnect after maybe 10 seconds. Has also happened when casting youtube. Has also happened when casting and watching plex.

So for me, it only seems to happen when at home, in a specific spot and streaming video. But it only happens once when it happens.


Deeper analysis from the router shows the phone disconnected itself, it was not disconnected by the router or it lost connection. The phone decided it wanted to use data instead.

Has never happened anywhere else, signal isn't an issue.

[Tee93]

That little number i get is 5 but sometime I don't even see the number as well.

[arianwen27]

5 means wifi 5, kinda the default standard home wifi. So whatever issue we're both seeing, it's not related to wifi version. Good to know.

No number will be wifi 4. Most routers use wifi 4 mode when on 2.4ghz and wifi 5 mode on 5ghz

[Piper123]

Hey there and welcome to the Samsung UK and EU Community Customer to Customer Forum

Try this first.... Reset Network Settings

You'll have to re-input any WiFi passwords but your network will automatically update APNs.

No loss of data doing this.

[Tee93]

I see. I got 2.5ghz and 5ghz. I guess it connects automatically with the fastest one. I turned off the intelligent wifi feature, hope that does something. But it's a very strange issue though.

[Tee93]

I did that just now, i will update you if any issue occurs again.

[arianwen27]

Yeah, every android device and just device in general will swap to the best one it can find. Samsung just adds some extra smarts to it. Will give a network reset a try as Piper suggested, can't hurt.

Little extra. For my network I have 2.4ghz, 5ghz a second 5ghz and 6ghz. With the capability to use 3 of them all at the same time. So I assumed that complicated mess was causing the disconnections. Guess all of that is working fine

[Joeeye]

Try restarting your router. This usually can help connection issues with WiFi.