> For the complete documentation index, see [llms.txt](https://help.sipgate.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/mobilfunk/apn-konfiguration-fehler-und-loesungen.md).
# APN configuration errors and solutions
Common error messages during APN configuration for sipgate mobile services and their solutions.
The following article contains the most common error messages for APN configuration for setting up mobile internet access on smartphones.
#### iPhone
Mobile data network could not be activated. PDP authentication error
**Cause:** No data package has been booked. Without a data package, data transfer will not work.\
\&#xNAN;***Solution:*** Book a sipgate data package for the smartphone. In the article [**How do I book new data volume and data snacks?**](https://help.sipgate.de/hc/de/articles/4407465302801-Wie-buche-ich-neues-Datenvolumen-und-Datensnacks) you will find helpful information and instructions.
Data connection works in Germany, but not abroad (iPhone)
***Solution:*** Change APN settings manually to sipgate, if necessary after every iOS update. Further information can be found in the article [**How do I set up internet access on my mobile device?**](https://help.sipgate.de/hc/de/articles/4413852395281-Wie-richte-ich-den-Internetzugang-auf-meinem-mobilen-Endger%C3%A4t-ein)[.](https://help.sipgate.de/hc/de/articles/4413852395281-Wie-richte-ich-den-Internetzugang-auf-meinem-mobilen-Endger%C3%A4t-ein)
Data connection works in Germany, but not in the EU (iPhone)
**Cause 1:** The smartphone is set to 2G, but only 3G/LTE is available at the location\
**Solution 1:** Activate 3G or LTE as the connection type on the smartphone\
**Cause 2:** Airplane mode is activated on the smartphone\
**Solution 2:** Disable airplane mode on the smartphone\
**Cause 3:** The phone does not notice the EU<-->DE network change and does not send a new registration\
**Solution 3:** Airplane mode: on/off, restart the phone
#### Android
Connection error (Android)
**Cause:** Inputs differ from the template\
**Solution:** Match your entries with the template from the article [**How do I set up internet access on my mobile device?**](https://help.sipgate.de/hc/de/articles/4413852395281-Wie-richte-ich-den-Internetzugang-auf-meinem-mobilen-Endger%C3%A4t-ein) to complete.
Data connection works in Germany, but not in the EU (Android)
**Cause 1:** The smartphone is set to 2G, but only 3G/LTE is available at the location\
**Solution 1:** Activate 3G or LTE as the connection type on the smartphone\
**Cause 2:** Your smartphone can only do 2G, but only 3G or LTE is available at the location\
**Solution 2:** Change location or use another phone with 3G / LTE\
**Cause 3:** The DUAL SIM Slot 2 can only do 2G, and no 2G is available at the location (usually abroad)\
**Solution 3:** SIM Slot 1 can/may use 3G, insert the sipgate SIM into Slot 1\
**Cause 4:** Airplane mode is activated on the smartphone\
**Solution 4:** Disable airplane mode on the smartphone\
**Cause 5:** The smartphone does not notice the EU<-->DE network change and does not send a new registration\
**Solution 5:** Airplane mode: on/off, restart the smartphone
#### Blackberry
Data connection works in Germany, but not in the EU (Blackberry)
**Cause 1**: The smartphone is set to 2G, but only 3G/LTE is available at the location\
**Solution 1:** Activate 3G or LTE as the connection type on the smartphone\
**Cause 2:** airplane mode is activated on the smartphone\
**Solution 2:** disable airplane mode on the smartphone\
**Cause 3:** The phone does not notice the EU<-->DE network change and does not send a new registration\
**Solution 3:** Airplane mode: on/off, restart the phone
#### Windows Phone 8
Data connection works in Germany, but not in the EU (Windows Phone 8)
**Cause 1:** The smartphone is set to 2G, but only 3G/LTE is available at the location\
**Solution 1:** Activate 3G or LTE as the connection type on the smartphone\
**Cause 2:** Airplane mode is activated on the smartphone\
**Solution 2:** Disable airplane mode on the smartphone\
**Cause 3:** The phone does not notice the EU<-->DE network change and does not send a new registration\
**Solution 3:** Airplane mode: on/off, restart the phone
#### Windows Phone 10
Data connection works in Germany, but not in the EU (Windows Phone 10)
**Cause 1:** The smartphone is set to 2G, but only 3G/LTE is available at the location\
**Solution 1:** Activate 3G or LTE as the connection type on the smartphone\
**Cause 2:** Airplane mode is activated on the smartphone\
**Solution 2:** Disable airplane mode on the smartphone\
**Cause 3:** The phone does not notice the EU<-->DE network change and does not send a new registration\
**Solution 3:** Airplane mode: on/off, restart the smartphone
#### Symbian Phone
Data connection works in Germany, but not in the EU (Symbian Phone)
**Cause 1:** The smartphone is set to 2G, but only 3G/LTE is available at the location\
**Solution 1:** Activate 3G or LTE as the connection type on the smartphone\
**Cause 2:** Airplane mode is activated on the smartphone\
**Solution 2:** Disable airplane mode on the smartphone\
**Cause 3:** The smartphone does not notice the EU<-->DE network change and does not send a new registration\
**Solution 3:** Airplane mode: on/off, restart the smartphone
#### Fritz!Box
*Check for errors: Fritz!Box ➔ Settings ➔ System ➔ Events*
No LTE network was found within range.
**Cause:** No LTE network is available at the location\
**Solution:** Wait, the Fritz!Box may find an LTE/UMTS network a few minutes later
LTE connection is established and disconnects after a certain time
***Analysis:** Fritz!Box ➔ Internet ➔ LTE Information ➔ Mobile network ➔ Check RSRQ*\
**Cause:** LTE reception is poorer -20 to -99 RSRQ, the LTE mast is kicking the Fritz!Box out\
**Solution 1:** Change the location of the Fritz!Box and check where the values improve: -1 to -19 RSRQ\
**Solution 2:** Fritz!Box ➔ Internet ➔ LTE Information ➔ Reception ➔ Start alignment aid ➔ Change the antenna angles and watch for the values to get smaller, e.g.: -99 dBm instead of -150 dBm\
**Solution 3:** Test stronger antennas on the Fritz!Box if the mast is more than 5-10 km away
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