Prepare
Upgrade the router to the latest firmware. If you are not sure about how to upgrade, please follow follow How to upgrade firmware of Cudy Router?
AT&T
Cudy router has been tested to work plug and play with most AT&T data plans. If you meet any problems, try to follow below instructions:
1. Power OFF the router.
2. Insert your AT&T SIM card.
3. Power ON the router, wait for LED become solid.
4. Hold the Reset button for 5 seconds before release.
5. Wait for LED become solid again.
6. Connect to the network via WiFi or Ethernet.
7. Open a web browser and go to http://cudy.net or http://192.168.10.1.
For details, please refer to How to log into the web interface of Cudy Router?
8. Go to General Settings -> Cellular.
- Set Network mode as 4G only
- Set APN profile as Manual
- Set APN as broadband
- Set PDP Type to IPv4/IPv6
- Leave username and password as blank.
- Set Authentication as PAP+CHAP
9. Save all the settings and then check.
10. If the internet still not work after all, then please wait 5 minutes and then go to System status -> System -> More details -> System log to download the log and rename it to AT&T.
11. Send below things to support@cudy.com
- The System log file you download in Step10
- Your Data Plan name
But making 4G routers work with AT&T seems a mystery. Different data plans may behavior differently. Most importantly you should use the correct APN AT&T give you. Here is a list of APNs from AT&T for your reference only. Please consult AT&T about your correct APN. If you are not sure, try use 'phone'.
- Broadband: 'broadband' is the default APN when an AT&T SIM is detected in 4G data-only devices.
- Nrbroadband: 'nrbroadband' is the default APN when an AT&T 5G SIM (GID1 is 53FF) is detected in 5G NSA data-only devices.
- Lwaactivate: 'lwaactivate' is the default APN when an AT&T SIM is detected in devices that are prepaid or need to establish a data plan.
- Phone: 'phone' is the multi-purpose APN for HSPA+ and LTE voice + data devices when an AT&T SIM is detected.
- Nxtgenphone: 'nxtgenphone' is the multi-purpose APN for LTE CA or VoLTE enabled voice + data devices when an AT&T SIM is detected.
- Enhancedphone: 'enhancedphone' is the multi-purpose APN for 5G NSA supported voice + data deviceswhen an AT&T 5G SIM (GID1 is ‘53FF’) is detected.
- Nrphone: 'nrphone' is the multi-purpose APN/DNN for 5G Option 2 SA supported voice + data devices when an AT&T 5G SA SIM (GID1 is ‘52FF’) is detected.
- Hotspot: 'hotspot' APN is for mobile hotspot and tethering when an AT&T SIM is detected.
- Nrhotspot: 'nrhotspot' APN is for mobile hotspot and tethering when an AT&T 5G SA SIM(GID=”52FF”) is detected on a 5G Option 2 SA device.