iPhone X wifi problems

[Allana]

wifi at home works great ,works great at a few other places.
However there have been places where I could not connect ,,i just figured they had bad wifi ..Well at work i found out i get the same error..i checked with other iPhone owners and they all connected at work great checked the password several times and it was correct ,then i reset network settings..that didn't work ..then i clicked forget this network and tried to reconnect and that didn't work ..
im iPhone x on 11.2.2

any suggestions ..see pic for my error

 

[eyoungren]

Try changing your DNS. Press on the "i" next to the network. Tap on the DNS entry and enter the DNS you want to use.

Here's mine…but you can use Google. 8.8.8.8 and 8.8.4.4.

 

[jav6454]

Have you checked if your router is not experiencing hicccups? Mine used to do that and I had to swap it out.