One UI 7 wifi issue

[Isaiah0723]

After installing one UI 7.0. I have had a lot of issues with slow wifi, whether that be loading browser pages, apps, in game loading connecting to servers etc, download updates for smart devices. It has all failed or not working at all. Unless I use my data. I have reset my network settings and my router etc all the obvious stuff. Definitely an issue only when I use my wifi which has never happened before. 

[Isaiah0723]

It's on default security settings for me, medium I think. Why say that randomly tho?

[Guyfrommars]

I noticed my wifi speeds topped out at about 20Mbps down, 100Mbps up on both S22U & S24, both updated to OneUI7. I run my own firewall/router, so I have tools to diagnose & differentiate between speeds from ISP modem to router and router to device (wired/wireless). Wireless speeds on other Wifi6E capable laptop was topping at 800Mbps, which is what I would expect of my Samsung phones. This appears to be a software/firmware problem on the Samsung devices that needs correction. My wife & I intentionally have Hi-Speed wifi for work, so we have to resort to USB to Ethernet adapters for certain workloads until Samsung resolves this problem. While one user noted IGMP snooping turned off on their router fixed the issue for them, that sounds like a temporary fix and not an actual long-term solution. I have submitted a Feedback report to Samsung and hope they push a patch through within the month. 800Mbps --> 20Mbps is pretty rough.

[Isaiah0723]

Yeah

[Guyfrommars]

Clearing cache partition in Recovery fixed my Wifi slow problem, per this post: https://r1.community.samsung.com/t5/galaxy-s/galaxy-s23-ultra-wifi-issue/m-p/33435064/highlight/true...

[Members_0QNthcF]

This is so messed up. My Samsung phone does not run OUI 7 and it's the only device I can use right now. I have two Samsunf ta lets that have been screwed since Samsung updated them to OUI 7. There is no access for me to turn off IGMP snooping on my welcome hub. I am so angry, this has been going on for days!!!!!!!!!! It may be the end of Samsung for me! 

[Isaiah0723]

Have u contacted your ISP?

[Members_0QNthcF]

I just had a chat with support, they say a fix is in the works, hopefully soon.

[Isaiah0723]

They'll take a while. Contact your ISP , I couldn't do it directly from my settings either

[JeyC]

I'm having the same problem after one ui 7 was installed in my phone. Wifi doesn't work correctly, and I have to use 5G to load some pages and apps.

[Members_4YmYVJg]

Disable Nearby device scanning at More connection settings works for me, now wifi is more stable