Hi there

At my wits end with my Vigor 2620ln running on a 4G sim for broadband. Everything has been fine until this morning when it wouldn’t connect to the internet despite seeming all fine on the dashboard.
Cut a long story short I ended up rebooting to factory settings but now the internet won’t connect and it also keeps dropping in and out on the dashboard.
On the Physical Connection page LTE status & USB Modem pages keep flashing between green & red

Any ideas would be gratefully received