AT&T APN Settings Samsung Galaxy S20, Galaxy S20+, Galaxy S20 Ultra 5G

Rahmath
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How to Setup and Configure AT&T APN  Settings  Galaxy S20 series Full Details Below......
AT&T Samsung Galaxy S20 APN, internet, data, MMS, 4G and 5G settings, follow these steps

AT&T Lte APN Settings  Samsung Galaxy S20 series 

  • From the Home screen, swipe up on an empty spot to open the Apps tray.
  • Tap Settings > Connections > Mobile networks > Access Point Names.
  • If available, tap the AT&T (the bullet point fills with blue). If not available, tap ADD.
  • To reset your APN settings, tap Menu > Reset to default.
  • Verify and update the following settings for the Data APN
Name ATT
APNNXTGENPHONE
or
Phone
or
wap.cingular
Proxy blank
Username blank
Password blank
Server blank
MMSC http://mmsc.mobile.att.net 
MMS Proxy proxy.mobile.att.net 
MMS Port 80
MMC 310
MNC 410
Authentication type not set
APN Type internet + mms
APN Protocol IPv4 
APN enable/disable  blank

  • Tap Menu > Save.
  • Tap the desired APN profile you want to use. The bullet point fills with blue next to the APN profile.

Switch 2G / 3G / LTE / 5G
  • From the Home screen, swipe up on an empty spot to open the Apps tray.
  • Tap Settings > Connections > Mobile networks
  • Tap Network mode, then select desired setting:
  1. 5G/LTE/3G/2G (auto connect)
  2. LTE/3G/2G (auto connect)
  3. LTE/3G (auto connect)
  4. 2G only