I was recently sent a new modem (SmartWifi) and had to replace my old one (Technicolor TC7200), which had been deactivated. Since switching over, the Internet connection has been very poor. It seems as though it takes a very long time to make a connection to a new website / IP address, although once a connection is established, the transfer of data is reasonably good. Each subsequent new connection takes ages to establish though.
Could a Ziggo moderator please diagnose this remotely (I understand that they can do this)?
I think that it might have something to do with IPv6. When I do an IPv6 speed test, it says that it is "Not available", but then the IPv4 speed results are reasonable (e.g., ~30 MBit/s, which I guess isn't actually that great, since I have a 300 Mbit/s package and a 60-70% strength Wifi signal). So, perhaps the browser (etc.) tries for ages to make an IPv6 connection, fails (times out), and then falls back to IPv4, which then works... ?
I see that many people on this forum are asking for IPv6 to be disabled on their modems. Perhaps that would be the best solution then (?). In any case, thanks in advance for any help!