<span>Not a valid IPv6 address
A valid IPv6 address consist of 8 groups of 4 hexadecimal numbers separated by colons ":". But that can make for a rather long address of 39 characters. So you're allowed to abbreviate an IPv6 address by getting rid of superfluous zeros. The superfluous zeros are leading zeros in each group of 4 digits, but you have to leave at least one digit in each group. The final elimination of 1 or more groups of all zeros is to use a double colon "::" to replace one or more groups of all zeros. But you can only do that once. Otherwise, it results in an ambiguous IP address. For the example of 2001:1d5::30a::1, there are two such omissions, meaning that the address can be any of
2001:1d5:0:30a:0:0:0:1
2001:1d5:0:0:30a:0:0:1
2001:1d5:0:0:0:30a:0:1
And since you can't determine which it is, it's not a valid IP address.</span>
This issue will happen mostly if cellular network will not be down, or suppose if cellular network is down mostly, or it will be rainy or a current cutoff issue might be occurred.
<u>Explanation:</u>
The following step to be made for trouble shoot his phone when cellular network is down.
1. Restart the mobile:- After restarting kindly check mobile connectivity.
2. Check for mobile air plane mobile and make sure the mobile phone is not in air plane mode.
3. Check the income and outgoing vapidity.
4. Switch off the mobile, Remove service provider sim card from mobile and reinsert the sim card and start the mobile.
5. Still connectivity problem, either contact the service provider or replace with new sim card.
A. fuel ; when you but a car you aren't buying the gas to go in it
Answer:You can only find REaccuracy if you know the actual “true” measurement… something that's difficult to do unless you're measuring against the atomic clock. The formula is: REaccuracy = (Absolute error / “True” value) * 100%.
Explanation: