Okay, Today my ITE dosent working it only show 4G but i cant go on Facebook etc is sais "Comnection Probleme" i restarted my phone (Samsung s8) and reset eveything but still dosent working! Is really stressfull!
Welcome to the community!
Had you previously been able to connect to the LTE network with that phone? Have you verified that your phone hasn't inadvertently removed the APN settings? You can verify the correct settings here. Since the phone is LTE-capable, it should be using ltemobile.apn
Hope this helps