Skip to main content
Accessibility Resource Center Skip to main content
Have a phone you love? Get up to $500 when you bring your phone.
end of navigation menu
Showing results for 
Search instead for 
Did you mean: 
USB551L Modem won't connect to D-Link MR3420

Good day.

The USB551L 3g/4g modem set up smoothly with Win10 running VZAccess Manager.  When I put the modem into D-Link Router and completed setup, the router recognized the Verizon 4G, but would not connect.  While plugged in the router, the modem indicator shines a lovely blue solid light (4G ready to be connected) but no joy.

Updated firmware on both modem and router Dial number is default set to *99#***3 and APN is VZWINTERNET.  Tried hard rebooting the router several times.

Any ideas??

Labels (1)
Re: USB551L Modem won't connect to D-Link MR3420
Sr. Member

551L Manual:

The number is *99***3#

Leave APN blank

This applies:

TP-Link has already configured the router to use it. Try leaving both the phone and the APN blank. 

The router should have a log file, be sure it's on so it can record the attempt to use the modem. Log files help resolve problems.