Galaxy S25 Ultra 5GHz Wi-Fi Crazy Packet Loss Unusable

[Napster]

Brand New Unlocked S25 Ultra and my 5Ghz Wi-Fi in unusable.  I have toggled Intelligent Wi-Fi settings on and off, private dns on or off it still happens. My 2.4Ghz to the same router does not have this issue. 

I have been running this router in the same spot for years with the current setup without any issues. My S24 Ultra never had issues like this, no router settings have changed at all. All my other devices including an old pixel phone work fine.  

Not sure if it's hardware related to the radio or just buggy software. Any ideas or anyone else having same or similar issues?

Brand New Galaxy S25 Ultra

Old Pixel Phone, I have tons of devices on this network and my S24 Ultra had zero problems the entire time I have it. 

[LongHiker]

@Napster That is an odd issue. Have you tried rebooting your router? This would reset the end point to your S25 and maybe correct the issue. 

[Napster]

Why even post that? Did you even read what I wrote or look at the screenshots? That's just not helpful at all. 

Anyway for anyone else that comes across this I have been troubleshooting since I posted that. The issue appears to be related to my router was using a DFS channel. I changed it to a non DFS channel and so far it has stabilized and the packet loss has gone away. 

Never have had an issue with it on previous generation devices or other devices. This model appears to be highly sensitive to it compare to older phones.

[usermzeJaY3BsM]

They wrote that in an attempt to assist you.  It is not just in the IT world but with anything electronic that a restart should be part of your trouble shooting steps.  No need to jump down their throat for suggesting something that you did not specify that you did.

[NoBandwidth]

The man was trying to offer you a simple suggestion, you didn't have to respond like that. No where in your post or pictures does it say you rebooted your router, and if you had called anybody in IT, they'd be suggesting that as one of the first things to do. I hope you find peace and happiness SIR.
GOOD DAY!

[Napster]

I did fail to mention that I rebooted my router, I figured that would have been assumed being that I posted 2 screenshots side by side with an older device working perfectly and the new one not. That was the point of the post. So yes, I did reboot my router. 

The reason for the screenshots was to show the packet loss which is not normal at all especially when I have been running this setup for years and no other devices have this issue which I also posted. 

When people have a real issue and post about it be it me or anyone else and all you get is the most generic copy and paste non-helpful reply it's frustrating because that is not any kind of real support especially when it comes to a hardware issue with the wi-fi radio. 

[LongHiker]

@Napster Troubleshooting is a process. It is especially difficult remotely. You have to ask questions and get responses from the person experiencing the issue. Much of the time, the simple actions cure issues. 

A lot of posters say things like "I've done everything" but when you walk them through the process they discover things that they haven't done and often it provides a solution. 

Copping an attitude isn't helpful when someone is trying to help you. 

[usermzeJaY3BsM]

I work in IT, you have no idea how many tickets come through my department that are resolved by re-booting.  Even trained IT professionals sometimes forget this step and spend hours trouble shooting something from different angles, only to find out later that a simple re-boot was all it needed.

Also not sure how your two different screen shots prove that you rebooted, they are from different devices that could have been connected, and screen-shotted simultaneously. they have a time stamp that is literally 1 minute apart, so this proves nothing on the re-boot front.

I am glad you found your issue, and that you have it working again after disabling DFS.

[NoBandwidth]

BTW, you should start with rebooting your router.....

[kimminju]

I have the same problem playing online game on my phone