24-01-2015 09:45 PM
24-01-2015 11:52 PM - edited 24-01-2015 11:53 PM
Has anything changed on your phone recently? E.g. software update, changes to settings?
Can you try your SIM in another unlocked phone to see what happens there?
Are you in an area of poor coverage that you were not in before?
Do you know anybody else in the same area on 48 (or maybe Tesco, Lycamobile, O2) to see how they fare?
If necessary log a support query to ask 48 support for assistance:
http://www.48months.ie/help#ask-a-48-agent
Hope this helps.