Hotspot doesn't turn on 5Ghz

[RacingCatz]

The 5Ghz hotspot doesn't turn on unless i switch to 2.4Ghz. The 5Ghz only work after restarting the device but i am not gonna restart my phone everytime i want to use hotspot. How can i fix this? 

Galaxy S21 Ultra with One UI 7 (Android 15) 

[Rahul_Radhakrishnan]

Hi 👋
That does sound annoying. If your S21 Ultra only lets you use the 5 GHz hotspot after a restart, it could be a software glitch. A few things you can try:

1. Reset network settings → Settings → General management → Reset → Reset network settings. (This won’t delete personal data, just Wi-Fi/Bluetooth/mobile settings).

2. Clear system cache → Power off → hold Volume Up + Power → release at Samsung logo → choose Wipe cache partition.

3. Change hotspot band manually → Settings → Connections → Mobile Hotspot and Tethering → Mobile Hotspot → Configure → Band → set to 5 GHz only.

4. Safe Mode Test → Restart in Safe Mode and try enabling 5 GHz hotspot. If it works fine, a third-party app may be interfering.

5. If none of that helps, I’d recommend sending an error report right after the issue occurs (Samsung Members → Support → Error reports). This will help Samsung’s software team check the logs and fix it in an upcoming update.

Hopefully a patch sorts it out soon.

[Samsung_specialist]

We're sorry to hear about your experience.

To assist you further, follow these steps:
1. Settings > Software update > Download and install > Download > Install now.
2. Go to the Settings => select Device Care =>Optimize now.
3. Settings > General management > Reset > Reset network settings > Reset settings > Reset.
4. Run a diagnosis test via Member app :
Download Samsung member app from Galaxy store then open the app => diagnosis => Phone diagnosis.

If the issue persists, please visit a service center for further assistance. You can locate your nearest service center using the link below: https://www.samsung.com/ae/support/service-center/.