Unlocked S9+ on Sprint losing Mobile Data several times a day.

[Von 7]

Bought unlocked S9+ July 1st(upgrade from Note 5), directly from Samsung. Using on Sprint(Unlimited plan) with new SIM card. Works great most of the time, however several times a day I lose network connectivity for mobile data. Signal strength is just fine(full LTE), but pages won't load, updates won't download, etc... Toggling mobile data doesn't work. The only fix is RESTART. I have updated the profile and PRL as well, but issue persists. Any ideas, or anyone else experiencing the same issue?

 

[D.P.G.]

Same situation here unlocked on Sprint but no problems. Sorry I'm not any help have you considered a bad sim? Mine is a S9 Plus that might be the only difference.

 

[Von 7]

Toggling Airplane mode on/off will restore internet.

 

[methodman89]

What are your handoff and switching settings for connections? The new os can change from cell data to wifi automatically if configured for it. Make sure these are correct.

 

[Von 7]

I've enabled that feature now...we'll see if that works. I may pick up another SIM card today, and see if that helps as well. The only thing Samsung offered after 28 days of ownership, was shipping it off to a repair shop. I was hoping they could send me a replacement under 30 days. I love the phone, but mobile data is the whole point of a smart phone. I never had any problems with my Note 5, nor my son's S7.

 

[Von 7]

Does anyone know if a bad SIM card can cause mobile data connectivity issues?

 

[methodman89]

Does anyone know if a bad SIM card can cause mobile data connectivity issues?

Yes, to the point of complete loss of connection.