You write that the captive portal is opened on mobile phones, which means that WLAN AND ClearPass are configured correctly. The fact that Captive-Portal can be opened manually on Windows PCs also speaks in favor of this.
Modern OS perform a test after WLAN connection and automatically recognize that a captive portal is present. That probably means @cordless.
Furthermore, a public signed certificate must be used for the HTTP server in ClearPass, otherwise the client does not trust the certificate and displays a certificate warning. This is what @cordless means by "Trust List of the OS".
If the mobiles do not display a warning, you must already be using a public signed certificate.
From a technical point of view, the controller sends an HTTP 302 code in preauthenticated role, which means resource moved, the captive portal URL is in the packet. Recognizing the captive portal is a client thing, you cannot influence it in the ClearPass or WLAN controller. Old OS like Windows 7 cannot detect it. You have to open a browser under Windows 7. If the browser does captive portal detection, you will see it. If the browser cannot do it either, any URL must be opened manually, then the controller will also send an HTTP 302 packet.
The HTTP 302 packet must reach the client. Can you use wireshark to check whether this is the case?
Are the Windows PCs in the same IP network as the mobiles? Maybe a firewall is blocking the packets?
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Regards,
Waldemar
ACCX # 1377, ACEP, ACX - Network Security
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Original Message:
Sent: Jul 01, 2024 04:48 AM
From: airhead_tem
Subject: Guest WIFI splash webpage not prompt on laptop
Hi
1. Can you please what is captive portal detection is disable? I'm not sure?
2. Also and cert in the trust list? Where can I check this
Original Message:
Sent: Jul 01, 2024 04:33 AM
From: cordless
Subject: Guest WIFI splash webpage not prompt on laptop
Just wanted to verify if Captive Portal detection is disabled.
Best would be to take a PCAP to see what is going on under the hood.
Could be that the issuer of the Cert is not in the Trust List of the OS.
Original Message:
Sent: Jul 01, 2024 04:16 AM
From: airhead_tem
Subject: Guest WIFI splash webpage not prompt on laptop
It will shown no page found, as the request of internet is not yet been approved. hence no internet.
Laptop, so far tested with Win 7 and Win 10.
The issues here is why the browser is not triggering the default browser to the splash page.
Original Message:
Sent: Jul 01, 2024 04:05 AM
From: cordless
Subject: Guest WIFI splash webpage not prompt on laptop
What if the User is trying to access a Website? For instance CP does not show off, type in any website address, will that be intercepted and will CP be provided?
Which OS is the Laptop using?
Original Message:
Sent: Jun 30, 2024 10:57 PM
From: airhead_tem
Subject: Guest WIFI splash webpage not prompt on laptop
Yes, we have tested with multiple devices and mobile phones.
If someone / visitor came and want to connect to Guest WIFI, the laptop is not splash but the mobile phones is splashing.
the URL is using FQDN and if I manual provide the visitor the URL and ask to paste it on the browser, it will shown the page.
Original Message:
Sent: Jun 27, 2024 08:03 PM
From: ariyap
Subject: Guest WIFI splash webpage not prompt on laptop
Have you tested with another laptop of device?
also try to test the splash page trigger with just IP address to rule out DNS related issue.
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Original Message:
Sent: Jun 26, 2024 10:54 PM
From: airhead_tem
Subject: Guest WIFI splash webpage not prompt on laptop
Hi,
We are using Aruba AP and Aruba Clearpass in the environment.
Visitor come and connect to Guest WIFI SSID, able to get IP address from DHCP, and the laptop supposed to trigger a splash webpage for the user to key in their information.
Problem is that the splash screen is not trigger on the laptop and this is the problem.
However, on mobile phone, it is triggering the splash screen.
Please help me out on this for any idea or hints.