I am trying to get a TCP connection to work in Sweden. It seems that it works if operator Telenor is selected but not if Telia is selected. Both is supported by Hologram and one of them are automatically selected when starting the module. I use “hologram” as APN.
I use a u-blox LARA-R211 module.
With Telia I always get the following error:
+CME ERROR: Unspecified GPRS error
Any ideas how to solve this?