> 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/fax/wie-richte-ich-sipgate-faxdrucker-fuer-windows-ein.md).
# How do I set up the sipgate fax printer for Windows?
Sending faxes works not only via the sipgate web interface, but also directly on your device with the sipgate fax printer. Here you can[ the 32-bit Windows version of the fax printer ](https://sipgate-faxdrucker.s3.eu-central-1.amazonaws.com/SipgateFaxdruckerInstall_x86.msi)and [the 64-bit Windows version here](https://sipgate-faxdrucker.s3.eu-central-1.amazonaws.com/SipgateFaxdruckerInstall_x64.msi) download and send faxes conveniently from your desktop from now on. With **Windows** you can send faxes via the application **Print**.
**Important**: For Windows version 3.24, login no longer works due to an API shutdown. For this, please use the **fax printer version 4.3.3.1** from the **sipgate homepage** download.
➔ After you have downloaded the sipgate fax printer for Windows, follow the instructions of the **installation wizard**.
➔ After the program has been installed, you will find the **sipgate fax printer** automatically under your **configured printers**.
➔ To be able to send your documents as a fax, you must first log in with your sipgate credentials. To do this, press the key combination **Windows key + R** and enter the following path: C:\Program Files\SipgateFaxdrucker\SipgateFaxdrucker.exe and then click **OK**. Now the sipgate fax printer opens – and you can log in in the browser.
➔ Now select the desired document and click the option **Print**. To start sending the fax, it is important that you select the **sipgate fax printer** as the printer.
You will then see the sending process and finally the successful transmission.
## **Frequently Asked Questions**
How can I improve the quality?
The source document should be black/white and without grayscale.
Can the fax printer be found in the Windows Store?
No, that is not planned for now.
Can the fax printer be installed on a Surface with an ARM CPU?
No, the fax printer only works with x86/x64 Intel/AMD CPUs.
Why can't I see any contacts?
sipgate start login only has phone contacts
* Import contacts via Google/CSV, making sure that phone/fax was imported
* Close the fax printer if it is open and restart via Print
* Fax contacts should now be loaded
* Check contacts in the sipgate account and adjust phone -> fax if necessary
* Close the fax printer if it is open and restart via Print
* Fax contacts should now be loaded
How can faxes be sent faster?
\- Send fax, wait until status "Document successfully transmitted"\
\- Close fax printer "click X top right"\
\- Document ➔ Print ➔ sipgate fax printer send new fax\
\- Check fax status in sipgate account ➔ event list\
from "Document successfully transmitted" the PDF file is on the sipgate server, which then sends the fax; you only need to wait in the fax printer if you want to see the transfer status until the end
Is the upload of the temporary fax PDF encrypted?
From the fax printer to the web server, the data is transmitted encrypted via SSL port 443 using TLS 1.2.
**Possible error codes**
Below you will find a brief explanation of certain error codes
F400 “Transmission failed, please try again later (F400)
**F400 “Transmission failed, please try again later (F400)**\
**Log:** “failed to send fax: An error occurred while sending the request”, if the API is blocked in the fax printer after a successful login\
**Cause 1:** Software firewall blocks requests from the fax printer to our API [https://api.sipgate.com](https://api.sipgate.com/) 217.10.72.56 and [https://login.sipgate.com](https://login.sipgate.com/) **or** Internet in general\
**Solution 1:** allow the fax printer to access the network/internet in the software/router firewall\
**Approach 1**: Check C://Users/”Name”/AppData/Local/sipgateFaxdrucker/Logs to see whether/which error message can be found with date and time matching the fax transmission\
**Cause 2:** sipgate is experiencing an outage, API is not responding\
**Solution 2:** Status website: check and wait\
**Problem 3:** Login works, fax line loaded, error when sending (F400)\
**Log 3:** “Error: 0 : Failed! Response code was: GatewayTimeout” and “Warning: 400 : Sending failed: Api returned no sessionId”\
**Cause 3:** looks like api.sipgate.com cannot be reached\
**Solution 3:** Check firewall rules to see whether api.sipgate.com / 217.10.72.56 is being temporarily blocked\\
Make sure you have an internet connection.\
\*\*Cause:\*\* there is no internet connection when sending a fax\
**Solution:** Check/fix internet connection, then resend fax
F500
**F500**: The transmission of the fax to our systems failed for an unknown reason. Please contact customer support, ideally with a description of how to reproduce the behavior.
F413
**F413**: The transmission of the fax to our systems failed because the file is larger than 9 MB.
F415
**F415:** Transmission of the fax to our systems failed because the file is invalid. Try a different file type.
Error message: The application requires .Net Framework 4.6.1 (4.3.2.0)
**Error message: The application requires** [**.Net Framework 4.6.1**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/NetFramework_Win7.png) **(4.3.2.0)**\
**Cause**: You are using Windows 7 Service Pack 1 without .Net Framework 4.6.1\
**Solution**: download and install .Net Framework 4.6.1 for Windows 7 from Microsoft [Link](https://www.microsoft.com/de-de/download/details.aspx?id=49982)\
**Note**: the fax printer 4.2+ cannot be used on Windows 7\\
**Error message: The application requires** [**.Net Framework 4.6.2**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/Framework.4.6.2.png) **(4.3.3.0)**\
**Cause**: Win 7/8 is missing .Net Framework 4.6.2, which is required by the fax printer\
**Solution**: [.Net Framework 4.6.2](https://support.microsoft.com/de-de/topic/das-net-framework-4-6-2-offlineinstallationsprogramm-f%C3%BCr-windows-9dce3874-a9e5-9b11-289d-5594824aafe0) install; fax printer installation should now work
Error message: FaxUI
**Error message:** [**FaxUI**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/FaxUIFehler.png) **The object reference was not set to an instance of an object**\
**Cause**: sipgate fax printer 3.24 is installed and can no longer be used\
**Solution**: uninstall sipgate fax printer 3.24, install new fax printer See [Windows Apps](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/Faxdrucker3.24Deinstallation.png)
Error: fax printer missing from the printer overview after installation
**Error: fax printer missing from the printer overview after installation**\
**Cause 1**: Task Manager ➔ Services ➔ Spooler “Print queue” ➔ Ended\
**Solution 1**: Task Manager ➔ Services ➔ Spooler “Print queue” ➔ right-click “Start\
**Cause 2:** Anti-virus software blocked registry entry\
**Solution 2:** Uninstall fax printer, reinstall, disable anti-virus software\
**Note 2:** “repair” did not help
Error message: “error”:”unknown_error”
**Error message:** [**”error”:”unknown\_error”**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/ErrorUnknownError.png)\
**Cause standard browser:** Browser cache knows login token, does not refresh the token (Opera)\
**Solution standard browser:** Clear browser cache, fax printer login now works\
**Workaround**: Windows ➔ Default Apps ➔ Browser: set another browser, log in to fax printer ➔ change default browser back again\
\- Logout/login now also works with the previous default browser
Error message: “Authentication not possible. / Login failed!
**Error message:** [**”Authentication not possible.**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/AuthentifizierungNichtMoeglich.png) **/ Login failed!**\
**Log analysis:** C://Users/”Name”/AppData/Local/sipgate Faxdrucker/Logs\
\- sipgate Faxdrucker Critical: 0 : Could not perform code exchange: The remote server returned an error: (407) Proxy authentication required.\
\- sipgate Faxdrucker Critical: 0 : Could not perform code exchange: at Sipgate Faxdrucker.Authentication\
**Cause**: api.sipgate.com / login.sipgate.com is allowed in the firewall, but sipgate.com is blocked\
**Solution**: allow api.sipgate.com / login.sipgate.com / sipgate.com port 443 (TLS 1.2) in the firewall
Error message: Login failed! / Error during login
**Error message**: [**Login failed! / Error during login**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/AuthentifizierungAbbrechen.png)\
**Log analysis:** C://Users/”Name”/AppData/Local/sipgateFaxdrucker/Logs\
\- sipgateFaxdrucker Critical: 0 : Error Authenticating: access\_denied\
**Cause**: after entering email/password, a prompt appears, here “[Cancel](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/ZugriffFaxErlauben.png)” was clicked\
**Solution**: log in email/password and the fax printer [Allow access](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/ZugriffFaxErlauben.png)
Error: when clicking “log in in the browser” + “No internet”
**Error: when clicking “log in in the browser” + “No internet”**\
**FireFox**: “Page not found”\
**Opera**: “No internet”\
**Chrome**: “The website cannot be reached”\
**Cause:** no internet / network cable not connected etc.\
**Solution:** Connect internet / network cable etc.
Error: when clicking “log in in the browser” + “No connection/failed”
**Error: when clicking “log in in the browser” + “No connection/failed”**\
**Firefox:** FireFox cannot establish a connection to the server at 127.0.0.1:51007.\
**FireFox + sipgate cookie**: Object reference not set to an instance of an object. [Image](https://sipgate.zendesk.com/knowledge/articles/211585785/de?brand_id=559261\&return_to=%2Fhc%2Fde%2Farticles%2F211585785)\
**FireFox without sipgate cookie**: Error: connection failed\
**Chrome**: Your internet connection is blocked\
**Edge Chromium:** Your internet access is blocked\
**Opera**: Object reference not set to an instance of an object. [Image](https://sipgate.zendesk.com/knowledge/articles/211585785/de?brand_id=559261\&return_to=%2Fhc%2Fde%2Farticles%2F211585785)\
**Opera**: The website cannot be reached 127.0.0.1 refused the connection [Image](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/OperaFirewallBlock02.png)\
**Cause**: in software firewall access from fax printer to the internet is blocked [Kaspersky](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/KasperskyZugriffBlockiert.png)\
**Solution**: allow internet access in software firewall
Error: clicking “log in in the browser” does not open the browser
**Error: clicking “log in in the browser” does not open the browser**\
**Log**: [System.Net](http://system.net/).Sockets.SocketException: A socket access was not permitted because of the socket's access permissions 217.10.72.54:443\
**Cause**: Windows ➔ Outbound rules ➔ sipgate Faxdrucker rule blocking IP 217.10.72.54\
**Solution**: Windows ➔ Outbound rules ➔ delete sipgate Faxdrucker rule or allow access
Error: login credentials are not saved permanently
**Error: login credentials are not saved permanently**\
**Cause:** Software X prevents system changes or software Y deletes config.dat\
**Problem:** Login data is deleted C://Users/”Name”/AppData/Local/sipgateFaxdrucker/config.dat\
**Example: DeepFreeze** was activated before fax printer login data was entered; after restarting the PC, fax printer login data from C://Users/”Name”/AppData/Local/sipgateFaxdrucker/config.at are deleted\
**DeepFreeze solution:** Disable DeepFreeze via administrator, log in to fax printer, set DeepFreeze system point and enable DeepFreeze; data should now be stored permanently\
**Example: McAfee Anti-Virus:** Scan drive C:// and check whether McAfee deleted config.dat\
**McAfee Anti-Virus solution:** restore config.dat and mark as trusted
Error: Windows print job reports “Error while printing” print job deletes itself
**Error: Windows print job reports “**[**Error while printing**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/FaxdruckerUmbenannt.png)**” print job deletes itself**\
“Document.pdf” could not be printed by the printer.\
**Cause**: fax printer is uninstalled, only a renamed fax printer entry remains\
**Solution**: Windows ➔ Printers ➔ delete renamed printer entry “Remove device”\
\- Install fax printer, optionally rename it back to sipgate-fax printer
Error: print job goes to print queue / fax printer does not open (user)
**Error: print job goes to print queue / fax printer does not open (user)**\
**Analysis 1: Windows 10/11 + user**: fax printer starts as [process](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/ProzessFaxdrucker.png) but not as user\
**Solution 1 Windows 10/11 user**: install fax printer 4.3.3.0\
**Workaround 1 Windows 10/11 + user**:\
\- cancel print job if present\
Start C:/Program Files/sipgateFaxdrucker/sipgateFaxdrucker.exe, log in to sipgate, fax printer should now be logged in\
\- fax printer **close**, no fax number can be entered here\
// starting once is necessary to obtain “user rights”\
\- Document->Print->Fax printer->Fax printer now opens, enter fax number\
\- Restart sipgateFaxdrucker.exe manually when the user logs out or the PC is restarted\
**Analysis 2:** %LocalAppData%\sipgateFaxdrucker\Logs\
Log error: sipgateFaxdrucker Critical: 0 : error loading credentials: The array must not be NULL\
**Problem 2: login credentials cannot be found/read:**\
C:\Users\Name\AppData\Local\sipgateFaxdrucker\config.dat\
**Cause 2:** unclear, possibly antivirus software that deletes the Config.dat / moves it to quarantine\
**Solution 2:** unclear, check antivirus/firewall
Error: print job goes to print queue / fax printer does not open (Win Server)
**Error: print job goes to print queue / fax printer does not open (Win Server)**\
**Cause Windows 2016/2019 Server + WinPC user:**\
Redmon (Redirect Port Monitor) starts Faxdrucker.exe as user „SYSTEM” instead of the local user, therefore you do not see the fax printer GUI/dialog because there are insufficient rights\
**Solution Windows 2016/2019 Server + Windows user:** install fax printer 4.3.3.0\
**Workaround Windows 2016/2019 Server:**\
(contact a server admin or IT service provider for implementation)\
\- delete all sipgate fax printer registry entries if the fax printer is already installed\
\- create a local admin\
\- perform fax printer installation with “local admin”\
\- log in as domain admin and set all permissions under **Security** to domain users and SYSTEM\
\- the local admin should now be deleted for security reasons\
\- fax printer starts; on first start it needs 1-2 minutes, after that it starts faster
**Solution for Windows Server 2022:** not available yet\
**Workaround for Windows Server 2022:** not available yet
Error: fax line is empty + no contacts found + “Send fax” is greyed out
**Error: fax line is empty + no contacts found + “Send fax” is greyed out** [**Image**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/APIBlockiert.png)\
**Error: when clicking “fax line” /** [**get groupfaxlines An error occured while sending the request. get groupfaxlines**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/ErrorOccuredWhileSendingRequest.png)\
**Cause 0**: software/hardware firewall blocks requests to api.sipgate.com\
**Solution 0**: allow software/hardware firewall access to api.sipgate.com\
**Example**.: Fritz Box->Internet->Filter->Lists->Blocked websites [edit](http://192.168.178.1/#/)-> api.sipgate.com\
**Example**.: Kaspersky->Settings->Protection->Firewall->Packet rules->custom rule that blocks api.sipgate.com / 217.10.72.56\
**Example**.: C:\Windows\System32\drivers\etc\hosts entry 127.0.0.1 api.sipgate.com\
\&#xNAN;**“Send fax” button is still grey / not clickable**\
**Cause 1:** insufficient credit\
**Solution 1:** top up credit\
**Cause 2:** invalid fax number entered\
**Solution 2:** Check whether the fax number is entered correctly / no special characters\
\--> 0137, 0138, 01212, 01807, 0185, 0181, 0188, 0900, and 118xx do not work\
**Cause 3:** No fax line selected / the user may not have fax enabled\
\- sipgate free has no WebFax --> the S/M/L plan must be used\
**Solution 3:** select fax line, possibly switch to tariff S/M/L\
**Cause 4:** unclear\
**Approach 4:** Check C://Users/”Name”/AppData/Local/sipgateFaxdrucker/Logs / send to support\
**Solution 4:** unclear
Error: your credit is insufficient. (min. 1.79 cents)
**Error: your credit is insufficient. (min. 1.79 cents)** [**Image**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/GuthabenNichtAusreichend.png)\
**Cause**: one should not have credit 0€ or negative credit in the sipgate account\
**Note**: despite free minutes in the trial phase, one has 0€ credit\
**Solution**: none, fax printer can only be used with credit after the trial phase\
**Deviating**: use WebFax, the WebFax in the customer area can use free minutes and credit
Error: fax printer login menu does not open after about 1 min “printed file is too large”
**Error: fax printer login menu does not open after about 1 min “**[**printed file is too large**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/DateiZuGro_Fehler.png)**”**\
**Description**: fax printer is listed among printers; when printing a document -> fax printer, the menu for logging in does not open; after 1 min an error message appears: file too large\
**Cause**: file is larger than 9 MB\
**Solution**: reduce file size
Error: black-and-white document is sent as a black background + red text
**Error: black-and-white document is sent as a black background + red text** [**Image**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/Fax_schwarz_rot.png)\
**Cause:** the fax printer is set up as a color printer, which is incorrectly implemented at least in Adobe\
**Solution: fax printer** 4.3.3.0 install / distributed via auto update\
**Windows 10**->Settings -> Printers & scanners-> sipgate fax printer ->Manage-> Printing preferences->Paper/Quality: save as black-and-white printer\
**Windows 11**->Settings->[Bluetooth & devices](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/DruckerEinstellungen01.png)->[Printers & scanners](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/DruckerEinstellungen02.png)->[sipgate fax printer](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/DruckerEinstellungen03.png)->[Printer settings](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/DruckerEinstellungen04.png) ->[Paper/Quality](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/DruckerEinstellungen05.png) ->Black and white\
**Cause Adobe Acrobat Reader:** Print->Fax printer: “Save color/toner” enabled [Image\_01](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/AdobeReaderFarbe.png)\
**Solution Adobe Acrobat Reader:** Print->Fax printer-> “in grayscale (black and white)
**A local log can be found here: C://Users/”Name”/AppData/Local/sipgateFaxdrucker/Logs**\
**Examples:**\
Error: 0 : No credential Manager found\
Warning: 0 : Refreshing token failed\
sipgateFaxdrucker Critical: 0 : error loading credentials: The array must not be NULL
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://help.sipgate.de/cloud-telefonanlage/en/using-sipgate/fax/wie-richte-ich-sipgate-faxdrucker-fuer-windows-ein.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
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The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.