Check and test the following:
First of all, try turning the modem off, unplugging it for a while and then turning it back on. Sometimes this simple advice works best.
For the Huawei B310, Huawei B311 and ZTE MF255v modems, hold the reset button for 5 seconds, for the Vodafone B3000 modem select System - Maintenance, click Reset and confirm OK.
Try removing the SIM and reinserting it into the modem to be sure.
This will verify if the error is in the modem or in the connected device.
For Cable Free Connection, we slow down the data after 30 GB is used up, for Cable Free Connection Full, the data services stop completely after the DataLimit is used up. Read more.
If you turn on the modem and no LED is lit on the signal, you need to cancel the PIN.
You need a sufficient LTE signal to connect to the internet.
We don't like to see it, but sometimes our network has problems and can be unavailable. You can check the current status of the network at a specific address at any time in the coverage map.
Check your payment status in the My Vodafone SelfCare. After payment, we will restore the service within 24 hours. We then recommend switching the modem off and on.
Connect to the modem via the network cable. If the cable connection works, interference from your Wi-Fi network may be causing internet problems. In this case, try changing the Wi-Fi channel.
Have you tried all the tips, but the data still doesn't work for cable-free connection? Drop by one of our stores with your modem and SIM card so we can test what's causing the malfunction.