Problem with Modem Connection

Dear all,

I have a Problem with the Modem module.
Tryed two different SIM Cards, that both work in a small Router.

The Connection always disconnects with User Interruption ...

Would love to hear some feedback from the more experienced people in here.

Output looks like this:

I (386899) simcom: State: Enter NetWait state
I (386899) gsm-nmea: Startup
I (389909) gsm-ppp: StatusCallBack: User Interrupt
I (389909) gsm-ppp: PPP connection has been closed
I (390899) simcom: State: Enter NetStart state
I (391919) simcom: PPP Connection is ready to start
I (392899) simcom: State: Enter NetMode state
I (392899) gsm-ppp: Initialising...
I (396199) simcom: PPP Connection disconnected
I (396199) simcom: PPP Connection disconnected
I (396899) simcom: Lost network connection (+PPP disconnect in NetMode)
I (396899) simcom: State: Enter NetLoss state
I (396899) gsm-ppp: Shutting down (hard)...
I (396899) gsm-ppp: PPP is shutdown
I (405899) simcom: State timeout, transition to 5
I (405899) simcom: State: Enter NetWait state
I (405899) gsm-nmea: Startup
I (408899) gsm-ppp: StatusCallBack: User Interrupt
I (408899) gsm-ppp: PPP connection has been closed
I (409899) simcom: State: Enter NetStart state

Question is, what does this mean? " gsm-ppp: StatusCallBack: User Interrupt" do I have a config error?
I tryed both, stable and testing images.

This is my config:

Module
Version: 3.2.010-153-g5562cd4a/ota_1/eap (build idf v3.3-beta3-776-g3d198cd50 Feb 3 2020 18:28:41)
Hardware: OVMS WIFI BLE BT cores=2 rev=ESP32/1
12v: 13.5v
SIMCOM Modem Status
Network Registration: RegisteredHome
Provider: Telekom.de
Signal: -77 dBm
State: NetLoss
Ticker: 4
User Data: 0
HW FIFO overflows: 0
Buffer overflows: 0
State Timeout Goto: NetWait (in 5 seconds)
Mux
Status: up
Open Channels: 4
Framing Errors: 0
Last RX frame: 5 sec(s) ago
RX frames: 248
TX frames: 89
PPP: Not connected
Last Error: User Interrupt
GPS: Connected on channel: #1
Status: enabled
Time: enabled
Configuration
[auto]
dbc: no
egpio: no
ext12v: no
init: yes
modem: yes
obd2ecu:
ota: yes
scripting: yes
server.v2: yes
server.v3: yes
vehicle.type: RZ
wifi.mode: ap
wifi.ssid.ap: OB-XX-XXX
wifi.ssid.client: Test
[can]
[dbc]
[egpio]
monitor.ports:
[http.plugin]
[http.server]
[locations]
[log]
[modem]
apn: internet.telekom.de
apn.password: tm
apn.user: t-mobile
enable.gps: yes
enable.gpstime: yes
enable.net: yes
enable.sms: yes
pincode: 1111
wrongpincode: no
[module]
cfgversion: 2018112200
init: done
[network]
dns:
[notify]
[obd2ecu]
[obd2ecu.map]
[ota]
auto.allow.modem: yes
auto.hour: 2
http.mru: ovms.dexters-web.de/firmware/ota/v3.1/eap/ovms3.bin
server: ovms.dexters-web.de/firmware/ota
tag: eap
[password]
module: **redacted**
server.v3: **redacted**
[power]
[pushover]
[sdcard]
[server.v2]
password: **redacted**
server: **redacted**
[server.v3]
port:
server: mqtt.someserver.com
topic.prefix:
updatetime.connected:
updatetime.idle:
user: mqtt
[ssh.info]
fingerprint: ayZ4AYnqO2Zcc+5U/swK7gRASo+Jf9WF8G+3m8HhU0I
[ssh.keys]
[ssh.server]
key: **redacted**
[system.adc]
[usr]
[vehicle]
id: OB-XX-XXX
units.distance: K
[wifi.ap]
OB-XX-XXX: **redacted**
[wifi.ssid]
AndroidAP: **redacted**
SCI-Test: **redacted**
[xrz]
battcapacity: 40000
canwrite: yes
rangeideal: 250
suffrange: 0
suffsoc: 0
REPORT ENDS