The constant fiddling with the unit settings to get it to work was very annonying, but now after 2,3,4 weeks, it will no longer allow me to login, it wont accept the passwd anymore. The instructions are as clear as mud and hard to read too. Have gone back to my old Huawei E5577, which works very well the smaller battery is no bother after the TP POS Had a TP wireless router a few years ago which worked reasonabley well, but after this debacle NO MORE. I gave a one star rating only after the proforma would not accept a zero or a negative rating.