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Hi @Janette9 . Regarding your phone, are there any problems when using mobile data?
Is it only when the phone is connected to the router's wifi?
Can the phone access some web sites but not others?
Can you list two of these "certain" ones you can't access.
Do you have a computer? Does it have the same problems with these web sites as the phone?
Can the computer access Netflix?
Does the TV say it is connected to the router's wifi? Does the router say the TV is connected?
Can you recall if anything network-wise happened on 18th?
@Janette9 . What model router do you have?
What browser is on your phone?
When you try to access one of those websites on your phone via router, do you get any message?
Does the message come quickly, or does it take a minute or more?
Do you get far enough to get the lock symbol in the address bar?
Can you access Netflix on your phone via router?
Can you look in the router admin to see what DNS addresses are used. Are they the normal TPG addresses or something else?
You've rebooted the router several times so you will have had a range of ip addresses. I don't think that all those addresses are being blocked somewhere.
I assume you can access tpg.com.au and Post Office.
@Janette9 . By Post Office, I mean TPG's webmail, which is accessed via tpg.com.au, so you probably can't access it.
The 2 DNS addresses are TPG's normal DNS addresses.
If you can access most web sites but you can't get TPG web site, they should be able to fix it. There might be a common problem affecting them and the others you can't access.
@Janette9 . If still a problem, try clearing the browser cache.
After that, try deleting browser cookies.
Do you know someone with a laptop who could connect it on your network? There is more scope for testing.