Phone displays 4G but there is no data connection

[Beeee]

Periodically, my Lumia 925 will show that I have a 4G connection, but there is no data service. So far, I have had no data connection in the last five days. My husband's identical phone has the same issue, as do a few of my friends running on Androids with Straight Talk. We have all experienced an identical issue at points in the past, with the most recent outage spanning from 12/28/14 - 01/05/14. Below are my data settings. Is this an issue with Straight Talk's data, or is there an issue with the APN settings? Can anyone help, or is it time to just ditch Straight Talk?

Nokia Lumia 925, Windows 8.1
SIM #: 8901260832138751070
APN Settings
FIELD SETTINGS
APN wap.tracfone
PORT 8080
MMSC http://mms.tracfone.com
MMS_APN wap.tracfone

[Lindsay_ST]

Hi Beeee. My name is Straight Talk Lindsay. We are sorry for the trouble. Let me help you. We need to take this issue offline, so I can address it further. I will contact you directly with a private message. Thank you.