Samsung
Change Mobile Hotspot Wi-Fi Band auf Samsung
A Samsung mobile hotspot broadcasts on a single Wi-Fi channel per band. If many nearby routers or hotspots use the same 2.4 GHz channel, your connected devices compete for airtime and the transfer speed drops.
Switching the hotspot to 5 GHz moves the signal to a less crowded frequency with higher throughput, though the range shrinks compared to 2.4 GHz. Older devices that only support 2.4 GHz will not be able to join once you switch.
To change the band, open Settings ➔ Connections ➔ Mobile Hotspot and Tethering ➔ Mobile Hotspot ➔ Configure ➔ Band. Pick 2.4 GHz or 5 GHz preferred and confirm with Save.
If Wi-Fi sharing is turned on, the band option is greyed out. Turn that feature off first, then repeat the steps above.
Pick 5 GHz when your laptop or phone stays close to the hotspot and needs top speed. Stick with 2.4 GHz for older gadgets or when devices are farther away, since that band handles walls and distance better.

