> 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 doesn't only work 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 it and send faxes conveniently from your desktop from now on. With **Windows** you send faxes via the application **Print**.
**Important**: For Windows version 3.24, login no longer works because of 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 among 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 keyboard shortcut **Windows key + R** and enter the following path: C:\Program Files\SipgateFaxdrucker\SipgateFaxdrucker.exe and then click on **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 be shown the sending process and finally the successful transmission.
## **Frequently asked questions**
How can I improve the quality?
The source document should be black and 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
* When importing contacts via Google/CSV, make sure that phone/fax has been imported
* Close the fax printer if 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 open and restart via Print
* Fax contacts should now be loaded
How can you send faxes faster?
\- Send fax, wait until status "Document successfully transmitted"\n- Close fax printer "click X top right"\n- Document ➔ Print ➔ sipgate fax printer send new fax\n- Check fax status in sipgate account ➔ event list\nFrom "Document successfully transmitted" onward, the PDF file is on the sipgate server, which then faxes it; you only need to wait in the fax printer if you want to see the transmission 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”, when the API is blocked after a successful login in the fax printer\
**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 with date and time matches the fax transmission\
**Cause 2:** sipgate is having an outage, API is not responding\
**Solution 2:** Status page: 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:\*\* when sending a fax there is no internet connection\
**Solution:** Check/fix the internet connection, then resend the fax
F500
**F500**: The transmission of the fax to our systems failed for an unknown reason. Please contact customer support, preferably with a description of how you can 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 another 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 under 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**: Windows 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 it; 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 the new fax printer see [Windows Apps](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/Faxdrucker3.24Deinstallation.png)
Error: fax printer is missing from the printer overview after installation
**Error: fax printer is 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 has blocked a 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 in default browser:** Browser cache knows the login token and does not renew it (Opera)\
**Solution for default browser:** Clear the browser cache; fax printer login now works\
**Workaround**: Windows ➔ Default apps ➔ Browser: set another browser, log in to fax printer ➔ change the 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 Faxprinter Critical: 0 : Could not perform code exchange: The remote server returned an error: (407) Proxy authentication required.\
\- sipgate Faxprinter Critical: 0 : Could not perform code exchange: in Sipgate Faxprinter.Authentication\
**Cause**: api.sipgate.com / login.sipgate.com are 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! / Login error**](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 logging in with email/password, a query appears, here “[Cancel](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/ZugriffFaxErlauben.png)” was clicked\
**Solution**: log in with email/password and the fax printer [Allow access](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/ZugriffFaxErlauben.png)
Error: clicking on “log in in the browser” + “No internet”
**Error: clicking on “log in in the browser” + “No internet”**\
**Firefox**: “Page not found”\
**Opera**: “No internet”\
**Chrome**: “The website is not reachable”\
**Cause:** no internet / network cable not connected, etc.\
**Solution:** Connect Internet / network cable etc.
Error: clicking on “log in in the browser” + “No connection/failed”
**Error: clicking on “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**: access from the fax printer to the internet is blocked in the software firewall [Kaspersky](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/KasperskyZugriffBlockiert.png)\
**Solution**: allow internet access in the software firewall
Error: clicking on “log in in the browser” does not open the browser
**Error: clicking on “log in in the browser” does not open the browser**\
**Log**: [System.Net](http://system.net/).Sockets.SocketException: Access to a socket was disallowed by the socket's access permissions 217.10.72.54:443\
**Cause**: Windows ➔ Outbound rules ➔ sipgate fax printer rule blocking IP 217.10.72.54\
**Solution**: Windows ➔ Outbound rules ➔ delete the sipgate fax printer rule or allow access
Error: login data is not saved permanently
**Error: login data is not saved permanently**\
**Cause:** Software X prevents system changes or software Y deletes config.dat\
**Problem:** Login data are deleted C://Users/”Name”/AppData/Local/sipgateFaxdrucker/config.dat\
**Example: DeepFreeze** was activated before fax printer login data were entered; after PC restart, fax printer login data from C://Users/”Name”/AppData/Local/sipgateFaxdrucker/config.at are deleted\
**DeepFreeze solution:** Disable DeepFreeze via administrator, log in to the fax printer, set a DeepFreeze system restore point and activate 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 it 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**: the fax printer is uninstalled; there is only a renamed fax printer entry left\
**Solution**: Windows ➔ Printers ➔ delete renamed printer entry “Remove device”\
\- Install fax printer, optionally rename the sipgate fax printer again
Error: print job ends up in the print queue / fax printer does not open (user)
**Error: print job ends up in the 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 the print job if present\
Start C:/Programme/sipgateFaxdrucker/sipgateFaxdrucker.exe, log in to sipgate, fax printer should now be signed 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\
\- manually restart sipgateFaxdrucker.exe when user logs off or PC restarts\
**Analysis 2:** %LocalAppData%\sipgateFaxdrucker\Logs\
Log error: sipgateFaxdrucker Critical: 0 : error loading credentials: The array must not be NULL\
**Problem 2: login data cannot be found/read:**\
C:\Users\Name\AppData\Local\sipgateFaxdrucker\config.dat\
**Cause 2:** unclear, possibly antivirus software that deletes/moves config.dat to quarantine\
**Solution 2:** unclear, check antivirus/firewall
Error: print job ends up in the print queue / fax printer does not open (Windows Server)
**Error: print job ends up in the print queue / fax printer does not open (Windows Server)**\
**Cause Windows 2016/2019 Server + Win PC user:**\
Redmon (Redirect Port Monitor) starts Faxdrucker.exe as user “SYSTEM” instead of local user, therefore you do not see the fax printer GUI/dialog, because not enough 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 system house for implementation)\
\- delete all sipgate fax printer registry entries if fax printer is already installed\
\- create a local admin\
\- perform fax printer installation with “local admin”\
\- log in as domain admin and set all rights under **Security** to domain users and SYSTEM\
\- local admin should now be deleted for security reasons\
\- fax printer starts, takes 1-2 min on first start, then starts faster
**Solution Windows Server 2022:** not available yet\
**Workaround Windows Server 2022:** not available yet
Error: fax connection is empty + no contacts found + “Send fax” is greyed out
**Error: fax connection 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 connection” /** [**get groupfaxlines An error occurred 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 access to api.sipgate.com in the software/hardware firewall\
**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 greyed out / not clickable**\
**Cause 1:** insufficient credit\
**Solution 1:** top up credit\
**Cause 2:** invalid fax number entered\
**Solution 2:** Check fax number whether entered correctly / no special characters\
\--> 0137, 0138, 01212, 01807, 0185, 0181, 0188, 0900 as well as 118xx do not work\
**Cause 3:** no fax connection selected / possibly the user has no fax\
\- sipgate free has no WebFax --> the S/M/L tariff must be used\
**Solution 3:** Select a fax line, possibly switch to an S/M/L plan\
**Cause 4:** unclear\
**Approach 4:** Check C://Users/”Name”/AppData/Local/sipgateFaxdrucker/Logs / send to support\
**Solution 4:** unclear
Error: your credit is insufficient. (at least 1.79 ct)
**Error: your credit is insufficient. (at least 1.79 ct)** [**Image**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/GuthabenNichtAusreichend.png)\
**Cause**: you should not have €0 credit or negative credit in the sipgate account\
**Note**: despite free minutes in the trial period, you have €0 credit\
**Solution**: no, the fax printer can only be used with credit after the trial period\
**Different**: use WebFax; the WebFax in the customer portal can use free minutes and credit
Error: fax printer login menu does not open after approx. 1 min “printed file is too large”
**Error: fax printer login menu does not open after approx. 1 min “**[**printed file is too large**](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/DateiZuGro_Fehler.png)**”**\
**Description**: the fax printer is listed among printers; when printing a document to Fax Printer, the login menu does not open, after 1 min an error message appears: file too large\
**Cause**: file is larger than 9MB\
**Solution**: reduce the file size
Error: black/white document is sent as black background + red text
**Error: black/white document is sent as 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 configured as a color printer, which is handled incorrectly, at least by Adobe\
**Solution: fax printer** install 4.3.3.0 / is distributed via auto-update\
**Windows 10**->Settings -> Printers & scanners-> sipgate fax printer ->Manage-> Print settings->Paper/Quality: Save 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 & white\
**Cause in Adobe Acrobat Reader:** Print->Fax printer: “Save color/toner” active [Image\_01](https://github.com/pinekenstein/zendesk-import/blob/main/cloud-telefonanlage/.gitbook/assets/AdobeReaderFarbe.png)\
**Solution in 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.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
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.