Its not about the " speed " of the connection its the " quality " of the connection that is truly at fault here,
In which state do you live? Please also send the zip code
Hesse - 60325
Which contract do you have?
Red Internet & Phone 500 Cable U
Which modem / router do you use?
Vodafone TG3442DE
Do you use a loaner device from us or do you have your own device?
Loan Device
What is the error? (Speed too low; packet loss) Send screenshots of speed tests (with date and time) and tracerts / ping plotter measurements in the event of packet loss or ping problems
Terrible VOIP call performance, constant drops, lags every few seconds during any call, huge ping drops. Using any VOIP application Microsoft Teams, Discord, Skype any ... all bad.
- ping.canbeuseful.com
- Tracert (2 tests to google.com + vodafone.de)
Industry standard test - speedtest.net
same but with Vodafone wrapper - speedtest.vodafone.de/
How is your terminal connected to the modem?
Hardwired LAN
Which browser do you usually use?
Chrome / Firefox
Which operating system do you have on your computer?
Win 10
Start and period of the disturbance
Constantly failing for the last few months (semi unbearable) rebooting router helps for an hour or 2, but recently service dropped completely for a full 24hours. (26th August 2021 11.00 approx) once the connection restored a day later, every 3 - 5 seconds, it will drop out for 2 - 3 seconds. So, no communication happens, all VOIP useless. Ping or sustained connection to any game service is terrible.
Upload a screenshot of the signal values
What measures were carried out by the fault hotline (available at 0800-5266625 for Vodafone Kabel Deutschland or 0221/46619100 for Vodafone West)?
- Denied there was a problem to begin with, then eventually admitted there was no service in our approximate location, then took a day to repair it. No help on the VOIP quality issues. Specifically got worse after the "total loss repair". But its always been below par on VOIP quality.
- Similar problems found here on these other posts ....
forum.vodafone.de/t5/St%C3%B6rungsmektiven-Internet-TV/Internetausfall-und-Probleme-mit-VOIP-ditzt/td-p/2378731
forum.vodafone.de/t5/St%C3%B6rungsmeldung-Internet-TV/Trotz-hoher-Bandbreite-immer-wieder-kurze-Einbrueche-der/td-p/2201783
Good morning abigail,
Thank you for your update on the technician visit.
Unfortunately, it is not possible to switch to a pure IPv4 address. 
You need a business contract for this. What we can try in any case is the changeover to dual stack. However, it is important that you need either our Power Upload (2.99 euros per month) or our Homebox Option (incl. Fritz!Box 6660).
Please be so kind and let us know if you agree and which of the requirements you would like to book so that we can then switch to Dual Stack.
Kind regards
R4mona
