Kindle Fire tablet won't launch Default Splash screen for Guest access

When this client connects to our Public guest WiFi her browser doesn't load. it comes up blank and she's not able to connect. It used to work. I had to delete the the public wifi during a large conference and then re-created after the conference. Ever since i recreated it she's not able to connect. I've not had another problems with any other devices. Her Kindle Fire version is 6.3.4_user_4120720. I don't have access to her device but if you could give me a couple ideas that would be great.

Is there a way to "Forget" the SSID or clear DNS on the Kindle Fire? any ideas would be most appreciated

I've opened a ticket with Ruckus support but that's not going to help me tomorrow (Sunday) when she'll try to connect again.
ronfastI.T. DirectorAsked:
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JohnBusiness Consultant (Owner)Commented:
See if the device has Airplane Mode.  If so, put it in Airplane Mode, wait 2 minutes, take it out of Airplane Mode and restart the device.

This action flushes DNS on an iPhone and might work on this device.

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JohnBusiness Consultant (Owner)Commented:
Thank you and I am glad that fixed the problem for you
ronfastI.T. DirectorAuthor Commented:
Thank you. Much appreciated
JohnBusiness Consultant (Owner)Commented:
I wish you a very happy holiday
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