How do I increase access grant duration in Meraki Custom Splash Screen

[o.galbavy]

We are developing custom hosted splash screen. We have trouble setting longer grant duration. We have tried appending following query argument to grant URL: '&duration=756000' (as written in Meraki EXCAP documentation), but Clients page still says access will expire in 24 hours. Is this option limited by "Splash frequency" setting in Meraki Dashboard?

[amoherek]

I'll move this thread to the Meraki community...

[o.galbavy · Accepted solution]

I got it working by swapping duration and continue_url query parameters, so duration comes first. There might be problem with correct query parameters parsing.