Ubiquiti Unifi Controller not accessible on mobile


#1

Hello,

I have a Ubiquiti Unifi Controller hosted in the Cloud and I cannot access the website from a mobile device. I get the below error:

This site can’t provide a secure connection
.com sent an invalid response.

ERR_SSL_PROTOCOL_ERROR

I can access from the unifi app and from a desktop but occasionally need to access it mobile. Is there a setting on cloudflare or the controller I need to change for this to work?

Thank you


#2

What is the domain?


#3

wb0uwz.com


#4

Requests are redirected to port 8443 but SSL works. Can you post a screenshot of the error?


#5

yeah It works fine on desktop, just mobile, I’ve tried several devices as well.


#6

What is your minimum SSL version on Cloudflare?

Also, try rebooting the phone to make sure you are not using any cached DNS entries and contact the wrong server.


#7

Can you connect via it’s IP?


#8

Using TLS 1.3 with a flexible certificate.


#9

Try lowering that to 1.2.

And, Flexible is a bad choice in general as the encryption is broken.


#10

Changed to TLS 1.2 and set certificate to Full.


#11

Hey It’s working now. Just pulled it up on 3 mobile devices that I couldn’t get it pulled up on 10 mins ago.

Thanks Gentlemen!!


#12

It would appear your mobile devices do not support TLS 1.3

And :+1:t2: for the change to “Full”.


#13

From what I’ve read, iOS won’t have TLS 1.3 until version 12.2 comes out. Bummer!!