1223. Change AT&T DNS Addresses due to problems

 For several days we had constant problems with Amazon and FamilySearch websites. Most of the time they came up, but when they did certain subsequent events did not, e.g. could not display books on Amazon, or get to records on Family Search. Both sites reported problems, so AT7T network didn't seem like an issue. Wrong. 

The overall performance also was intermittently lagging. So, I focused on the DNS Servers, which both of those sites may have also used, and asked if they could be changed since Internet AI was insistent with NO! Wrong again!

They can be changed. I would do this in the past for the ipV4 protocol. At that time, aging myself, ipV6 had so many problems that it was recommended to turn it off. Well, now it's become the standard and used to address the exponential increase in IP addresses (smartphones, etc.). Of course the formats from ipV4 were changed for the DNS addresses, so I needed to know alternatives for AT&T DNS server addresses.

The defaults for AT&T ipV6 are:

2600:1702:3b20:11b0::42  (primary) and

2600:1702:3b20:a1b0:10ed:bccb:e63a:b684  (alternate)

Its DNS Servers are:

2600:1702:3b20:11b0::1    (primary)

Instead, I changed the DNS Server to Googles addresses:

2001:4860:4860::8888  and 2001:4860:4860::8844 which resulted in

2001:4860:4860::8888 converting to 2001:4860:4860::808:808 and

2001:4860:4860::8844 converting to 2001:4860:4860::808:404

Mystery to me what all the numbers mean -- will look up some time. But for now they resolved ALL DNS issues immediately.

Now, how did I change them?

Network & Internet Center > Look at your Wi-Fi active connection and Properties

Select "Change DNS settings for all Wi-Fi networks"

Select "EDIT"

Then :Edit Network Settings and pull down "AUTO DHCP"

Slect "Manual"

Set IpV6 to ON

Now enter the preferred addresses for Google above

Then Reconnect your Wifi which was disconnected automatically

Enter your Password for your Wi-Fi.

Note: I had to figure out the steps from older steps which no longer worked and you might have to do the same from mine.