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Could not validate certificate signature

I just picked up an Ellipsis 7 and downloaded/installed Facebook but when logging in I get the following error message:

Sorry, unable to login to Facebook. Please check your network connection or try again later. (SSLHandshakeException: Could not validate certificate signature)

Also if I try to login to Facebook via the Chrome browser, I get a message about it not being a trusted site. Seems like this is a certificate issue but I don't know how to fix it.

Any suggetions?

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Re: Could not validate certificate signature
Customer Support

Mikebruchs, I know that would concern me too with my brand new tablet and we definitely want to figure this out for you. Since you have been having issues have there been any changes to the device? Any new apps or applications updates? Software updates? Have you powered the device off and back on? Are you connected to wifi or cellular service? Share some details, we're here to help.