Thanks for your reply. Yes I put the SIM in the spitz again and it alternates between 3G & 4G with each boot up. I tried “tethering” the spitz, to the iphone 12 and the spitz wifi is still getting 25Mb/s download. With the iphone cable still connected to the spitz, the iphone gets over 300Mb/s from the tower, on speedtest, but if I connect to the spitz wifi with another phone (Samsung Note 9) its still 25Mb/s. It seems I cant get anything above that. So disappointed. This is to be used in a travelling situation, so no point locking to a band as it could pass ten towers a day.