cellular "stopped_serching" and "denied"

[Yu]

Japan carrier(iijmio) SIM of only data communication, can not conect.
Network Status is "stopped_serching" and "denied"
There is no mistake in setting APN.
How can I connect to it?
Is there something you can not connect anyway?

[Yu]

[cell] Loading driver for UBlox Sara U2
conn: not connected. retrying
[cell] Resetting modem...
conn: not connected. retrying
[cell] Resetting modem...
[cell] auto-baud successful
[cell] manufacturer is u-blox

[brentp]

You have to confirm APN setting with carrier. There are some carriers in Japan that are compatible and others that are not, I will try to find the person who can help you.