Ive been trying to connect my phone to mobile data but no luck. I have a HTC one m7
I used the these details to set up my apn but no luck

APN: 48months.liffeytelecom.com
MMSC: http://mmc1/servlets/mms
MMS Proxy: 10.1.11.19
MMS Port: 8080
MCC: 272
MNC: 11
APN Type: * or default,mms,supl

Leave all other fields blank/not set (including Authentication type).
Make sure that data roaming is enabled.

Also my mobile data says its disconnected. Any solutions ?