Sophos Captive Portal re-authenticating users when roaming to different Unifi Access Points

Hello Temidayo,

Thank you for reaching out to Sophos Community!

I suspect - user IP may have changed and which is why the captive portal would have appeared.

Could you please confirm whether the end user IP changed when roamed to another AP?

Thank you for the feedback.
Sophos is actually the DHCP server for the network. The IP addresses are still the same.
The switches and AP's only enable wireless and LAN connectivity.
Regards.

Hello Temidayo,

I suggest raising the support case to investigate it further. Also share the case ID, hence we can share appropriate steps and collect the logs.

Hi Temidayo Abayomi-Zannu

Just wondering same setup was working earlier and stopped working now?

Regards

Hello,
We started utilizing the captive portal about a month ago due to the site being a factor and multiple known/unknown users connecting to the network.

We did have this set up at a similar location and the same issue still occurs.

Now users with Apple devices are complaining that the Captive portal pages isn't opening anymore and they are getting this error.

I'll reach out to Sophos Support regarding this as suggested.

This is noted.
Thank you.

Can you share current setting under CONFIGURE-->Authentication-->Web authentication-->Captive portal behavior ? with screenshot ?

Did you allow DNS service on any Zone without restriction ? Post the firewall rule if yes 

Regards

Yes i did as seen in the image below.

Regards.

Can you share current setting under CONFIGURE-->Authentication-->Web authentication-->Captive portal behavior ? with screenshot ?

Good day,
The captive portal details are listed below.

DNS route was also created. The captive portal does work but am currently experiencing 2 major issues.

• Users get disconnected and have to re-authenticate via the Captive Portal.
• IOS users sometimes get the error message as shown in the prior image.

Regards.