Some sites or services work only halfway
Your network got IPv6 but one piece (DNS, firewall, old server) does not understand it. Half works, half does not, and nobody knows why.
Try this first
- 1Test the problem site by replacing the URL with the raw IP. Works? Then it is DNS, likely IPv6.
- 2Test on a phone over 4G whether the site works there. Yes? Then it is your network.
- 3Temporarily disable IPv6 on the affected laptop (Windows: adapter > properties > uncheck IPv6) and retest. Works? Then the problem is at the IPv6 level.
- 4If it works without IPv6, turn it back on; leaving it off is a workaround, not a fix.
When to bring us in
IPv6 issues need calm tracing: firewall, DNS resolver, routes. We have tools to find where it breaks; usually half a day's work.
See also
- Wi-Fi drops randomly across the officeFirst rule out whether it is the access points or the internet connection itself. Different fix.
- One room or corner has no or bad Wi-FiNot always "add another AP"; often one is poorly positioned, or there is a metal wall in the way.
- Internet is suddenly slow for everyoneThree suspects: your provider, a colleague soaking the line, or a backup or update kicking in unexpectedly.
None of the above fits?
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Or skip the DIY entirely
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