I just started getting this on my iPhone but not on iPad or Mac. Any idea what’s up?
I am currently in a hotel and have the same issue. It happens on managed networks. They just block encrypted DNS traffic so they can see what you do. I’ve got around this by using my own travel router.
What wifi are you connected to? Work? School?
This happens on managed networks. I have my own DNS server set up for ad blocking, and block all outgoing DNS requests with my router to ensure devices use it.
Short answer:
You saw this message only on your iPhone probably because you have enabled iCloud Private Browsing.
If you don’t care that the network administrator might know you watching porns, then you can just ignore this message.
If you care about that but have no other choice, use VPN.
Long answer:
DNS is responsible for translating the domain name part of an URL (e.g. the “www.reddit.com” in “https://www.reddit.com/r/ios” ) to IP address (e.g. “151.101.1.140” for one of reddit’s server).
When you open a web page, your computer needs to know its IP address, so that it can make network connection. Your computer will first send request to DNS servers to query that domain name, and DNS server will reply with the IP address.
In the original DNS standard (IETF/RFC 1034), the data transmission is not encrypted, so your queries might be eavesdropped or logged. And that means other people might know the domain name of web site that you’re trying to connect.
When you enable iCloud Private Browsing, Safari will not send queries to the DNS server assigned by this Wi-Fi, but send to Apple’s own DNS server instead, and the transmission is encrypted. The encrypted transmission will use another TCP port (port 853) for the communication. If the firewall of the Wi-Fi network blocks network connection on that port, you will see this warning.
There are 4 solutions:
- Use another Wi-Fi, if available.
- Ignore the warning and keep using it.
- Use a full VPN instead of iCloud Private Browsing.
- Set up DNS-over-HTTPS. Unfortunately there is no easy way to do that on iOS. Read this if you’re interested: https://simpledns.plus/kb/202-how-to-enable-dns-over-tls-dot-dns-over-https-doh-in-ios-v14
Either it’s a managed network or in my case at home right now the internet isn’t working properly
My iPhone has an invisible spyware and I can’t not fix it in a iPhone 15
I have also been experiencing the same thing for a long time which I didn’t know how to manage but I think that I’ve picked up what to do about it now.
Yup. Do this at the Library system. We need to see DNS queries for content filtering.
Hey guys, it’s been happening to me lately and I’m quite sure it’s my brother doing as he’s on the same network. And he did get caught hacking me previously as well. How can I get around this and find out exactly what’s happening.
As suggested below, I turned off Private Relay (I always use a VPN) and the warning went away. Thanks all!
Out of curiosity, what iOS version are you on?
bro i’m happy and sad.
so this blocked me from using public sites like roblox, discord, chrome, etc.
i know this has been most likely answered. but if this happens just forget network and re-add if and it should work. also try setting your wifi address to private.
EDIT: i’ve looked through these comments and nobody suggested what i said, good on all of you who answered it, and i’m guessing both of ours works!
The network is blocking encrypted DNS traffic…
What do you mean what’s up?
Forget the WiFi network. Reboot your iPhone. Reconnect to the network. That should fix the issue.
It’s an iOS bug. Doesn’t matter if you’re using a managed device or not.
Using cell service or a VPN would also get around it
It’s time for me to buy my own travel router. Thank you so much for mentioning that because I’ve been looking for a workaround since.
I use a TP-Pink router at home and have noticed the same warning while connected to it also.
How does the travel router fix the problem?
I also have my own DNS server and ad block. But I didn’t block any outgoing DNS request. I still have OP’s warning message on my iPhone.