Hold the other details steady
Use the same device, player version and authorised source when comparing connections. Note whether the issue is an error, interruption or quality change. A 5G icon alone does not measure stability or guarantee a particular speed.
Report the difference
Record which connection worked and when the problem occurred. Check documented battery or data restrictions without changing everything at once. If location restrictions may apply, ask support; do not attempt to bypass them or share private network credentials.
Decide what to check after a network switch
If ordinary internet access also fails, check connectivity with the network provider. If only the player changes, keep the device and authorised item the same and record the error on each permitted connection. Stop the first stream before the second and check data charges. Do not infer the cause from a network icon alone.