Series 3: How do I set a 4G LTE modem to connect at 3G only on my CradlePoint router?

Beverly McRae

This article is intended for CradlePoint Series 3 routers. If you are not sure what series or model CradlePoint router you have, please click here.This article was written based on firmware version 5.0.0.Overview:By default the CradlePoint router will allow the modem to connect to the highest speed network available. In cases where both 3G and LTE networks are available but the LTE signal is weak, a modem that supports connection to both networks might still try to connect on LTE instead of dropping down to a more reliable 3G connection. This might cause slow speeds, frequent disconnects, or a complete lack of an Internet connection. To resolve this issue, it may be necessary to have the CradlePoint router instruct your modem to connect to 3G only.Note: Not all LTE providers and modems may support this feature through Series 3 CradlePoint routers. Listed below are the carriers and modems which have been tested by CradlePoint:

  • Verizon 4G LTE modems: Pantech UML290, Novatel USB551L, LG VL600.
  • AT&T 4G LTE modems:  Sierra Wireless AC313U Momentum, Hauwei E368 Force 4G

Directions:If you are not sure how to access your router’s administrative console, click here.

  1. Click on the Internet tab and select Connection Manager from the dropdown menu. User-added image
  2. Within the WAN Interfaces list, click to highlight your modem. User-added image
  3. Click the EditUser-added image
  4. Within the WAN Configuration window, select the Modem Settings tab. User-added image
  5. Change the Modem Connection Mode to either Auto 3G or Force 3G, and then click Submit to apply the changes. Your modem will briefly disappear from the WAN Interfaces list while it reconfigures itself.User-added image
Note: Forcing the modem to 3G will prevent it from being able to connect to any network other than 3G.

Note: If nearby cell towers have been upgraded to support 4G LTE, or if you move the CradlePoint into an area that supports 4G LTE, just change the Modem Connection Mode back to Auto (all modes) or Force LTE. It is a good idea to check signal strength and quality values to determine which connection mode would be more reliable.

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