USB modem on Centos

Running about 20 usb Huawei device on a centos box 3 of them are there to connect to 3g ISP these 3 are having random issues like i have to move to another usb port in order for them to show up in lsusb the 3 in concern are all E398 LTE/UMTS/GSM Modem/Networkcard I already have a script which grabs their imei and create softlink so i can dial up easily Would like someone who can fix their bugs so that they start and dial properly everytime