I am trying to use simcards that can connect all over EU (provided by Dutch company SimServices) with the RUT240.
The sims work when the routers are used in home-country Netherlands, but not when used for the first time on roaming in Germany.
If I insert the sims in my mobile phone they work fine. After I already do this step, and then I insert them back in the router, all of a sudden the sims can connect to a provider (?!)
Of course, this is something that cannot be normally explained. Find the troubleshoot here https://community.teltonika-networks.com/?qa=blob&qa_blobid=9944671294089021217
This issue is happening only on the routers represented in the images below.
Firmware: (latest) 1.12.2
APN: custom m2mc.simservices (which is correct)
Deny roaming access: Unchecked