Hopefully, you’ll be able to help me with a problem I am having with my Internet connection.
I recently moved house and my contract was reactivated on schedule. However, the router was updated to Fritz!os 7.57 and now I cannot use my DNS service as I am unable to turn off IP6 without losing Internet access. Does anyone know a workaround.
Kind regards
Dave B
Hello
welcome to the o2 Community 
.
What technology are you using? Is this a DSL connection or are you on cable or even fiber?
Kind regards, Sven
Hi Sven, I am a cable customer and my friztibox is a 6660
thank you for a fast reply.
On cable you can’t switch off ipv6. IPv4 is ds-lite and get tunneled by the ipv6 connection.
If you are using you DNS Service on a PC, just switch off IPv6 stack on the PC.
Yeah, it seems that it’s yet another reason to leave O2 and sign up with a different provider.
could you also tell me what department I need to ring reference my Internet speed? It seems I’ve gone down to 300 MB, whereas before I was getting 700 in my old house.
For English
O2 Service in English
Our English-speaking postpaid and landline support for you. We are happy to assist you.
Mon. - Fri. 8 am - 8 pm, Sat. 10 am - 6 pm, on workdays
or german
With DSL you get both ipv6 an ipv4.
Hello
yes, with cable do have IPv6 which cannot be switched off, with DSL IPv6 and IPv4 are included.
Could you already reach the colleagues of our technical department about the lower speed of your connection at your new address?
Best Regards,
Gerrit
Hi Gerrit,
I miss the timings for the English hotline, so I will be ringing Monday, but thank you for asking.
Hello
my colleagues of our our English hotline will be there for you from tomorrow, 8 am onwards 
The times are Mon. - Fri. 8 am - 8 pm, Sat. 10 am - 6 pm
I wish you good luck and a quick solution, please keep us updated here
Best Regards,
Gerrit
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