Why can I surf internet and make calls but texting is intermittent with 4g coverage?

[Loudva2]

So I'm able to surf the internet and make calls but texting works intermittently and warning messages come up stating text will be sent when mobile network is available but it is available with 2-3 bars of 4g service showing. When I make a call it wakes up the texting and I am then able to send and receive texts. Tried all troubleshooting I know from the simple to contacting service provider. I'm using an unlocked Verizon S6 on Straight talk. Any help would be appreciated.

 

[Aquila]

if it's connecting with Verizon or Sprint's CDMA network, the bars are very likely LTE and it could be defaulting to their CDMA network rather than their LTE network for SMS.

 

[Bob K1]

Check this and see if it applies to you, too:

https://forums.androidcentral.com/s...ont-send-unless-phone-dialed.html#post6086081