Home/Support/Support Forum/WR21 connects wrong APN after SIM failover
New and improved user forum site going live on 12/6 (All users will need to reset their password when the new forum is active)
Welcome to Digi Forum, where you can ask questions and receive answers from other members of the community.

WR21 connects wrong APN after SIM failover

0 votes
We have a WR21-002B-DE1-SH with Cellient MPL200 module. We have two SIMs (different ISPs)attached. Device is in a ship. When ship moves from one SIM area to another, the device does SIM failover ok, but on returning from SIM2 area to SIM1 area, it doesn't do the SIM failover because device thinks it's still connected with SIM2, even though it hasn't got connection or IP.
Only reboot fixes this, so after reboot, the device connects with correct SIM and APN.

Testing manually this, by forcing the change the device works ok. What can be the issue?
asked Nov 29, 2016 in Digi TransPort Cellular by VilleDM New to the Community (0 points)

Please log in or register to answer this question.

1 Answer

0 votes

This sounds like you do not have any surelink detection on sim2

did you use the wizard to configure the fail over?

is the configuration using normal dual sim with single PPP instance or dual PPP (PPP1 -> SIM1 m PPP2 -> SIM2)

if you are doing surelink the router should see that the connection is not working and drop PPP at this point it should fail back to the other SIM.


answered Nov 30, 2016 by James.Wilson Veteran of the Digi Community (1,227 points)