Skip to main content
Accessibility Resource Center Skip to main content
Get up to $500 when you bring your phone. Plus, waived smartphone activation fee when you buy online. Limited time offer.
end of navigation menu
cancel
Showing results for 
Search instead for 
Did you mean: 
USB551L Modem won't connect to D-Link MR3420
m_carney
Member

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)
0 Likes
Re: USB551L Modem won't connect to D-Link MR3420
7e18n1
Sr. Member

551L Manual:

https://scache.vzw.com/multimedia/mim/vzw_usb_551l_modem/usb551l_manual.pdf

The number is *99***3#

Leave APN blank

This applies: http://www.tp-link.com/en/support/3g-comp-list/?model=tl-mr3420&location=1163

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.