The TRB140 only registers in the 3G Telefonica network but cannot connect to the private APN.
Entry of the private APN is correct. Firmware is R_00.02.06.1
Roaming is enabled, but only works on 2G (Telekom or Vodafone) on 4G no roaming, no Telefonica registration.
Using a Telekom or Vodafone M2M card in TRB140 works fine in 2G & 4G.
Telefonica M2M card works in other 2G/4G devices (AVM, Itron) also without problems.
The Telefonica M2M card is a Spanish card to be used in the German network, does the TRB140 have a problem with roaming?