What could be the problem of Ipv6 inoperability?

Question

Windows

Hello !
The matter is that my provider distributes native ipv6. no need to set up any brokers, teredos, etc.

The problem appeared relatively recently; did not notice what exactly started, but ipv6 began to turn off exactly 30 minutes after connecting to the network. Without preconnection, as if there was no ipv6.
It was worth it before connecting and the Internet via ipv6 is again available, but exactly for 30 minutes.
And now there is no ipv6 at all, from the very beginning.
On ubuntu and win8 ipv6 works, does not disappear. I don't understand what happened on win7.

Answer 1

what is between the provider and the end PC?

Answer 2

A question at once, technology of distribution of the address? DHCPv6 or Stateless or hybrid?

Answer 3

update network card drivers update router firmware

Answer 4

Because nth counts by tree, not by selector. And the selector is an extra. condition, i.e. AND 3 down the tree, AND .bar class, which of course doesn't match your condition.
Crutch solution: codepen.io/anon/pen/QKzXoq

Answer 5

<div>
  <p class="foo"></p>
  <p class="foo"></p>

  <p class="bar"></p>
  <p class="bar bar--yellow"></p>
  <p class="bar bar--yellow"></p>
  <p class="bar"></p>
</div>

.bar--yellow {
    color: yellow;
}

Or as mentioned above

.bar:nth-child(4),
.bar:nth-child(5) {
  color: yellow;
}

The first option is more reliable, because if you change the number of elements, you won't have to rewrite the styles.

Answer 6

With such a construction (if it is not known how many foo elements are ahead and they can be mixed up), there is no way to CSS.
Use a wrapper or additional classes.
Or JS

Answer 7

.bar:nth-child(4),
.bar:nth-child(5) {
  color: yellow;
}

Answer 8

You need

.element:nth-of-type {

}

or as a colleague wrote above, better use an additional class

Answer 9

Through jquery, assign them another class and change it already

Answer 10

It doesn't work because :nth-child implies a through number of the element in the parent, not among a subset of elements with some class.
This behavior is controversial and not always convenient, but the authors of the specifications decided so.