Set the "Network Mode" to or 4G in your device settings.
Even with 4G hardware, you must ensure your SIM card is 4G-enabled. You can check this by looking for "128k" on the back of your SIM card. How to upgrade your SIM to 4G: idea 3g netsetter upgrade to 4g
Some older 3G Netsetters had "combo" SIMs that supported both 3G and 4G profiles. Even then, the hardware limits the connection to 3G. Set the "Network Mode" to or 4G in your device settings
But technology moves forward. Keeping a 3G Netsetter alive today is like trying to use a dial-up modem in the age of fiber. It’s a beautiful relic, best placed on a shelf as a museum piece, not as a daily driver. not as a daily driver.