If you are having problems with iPhones or iPads (or any other device) playing through your Watchguard WebBlocker proxy (via your Watchguard firewall), the fix is very simple. Presuming you have one of the latest firmwares (11.6.x as of today) and are using WebBlocker with a proxy combined with the content filtering… Log into the Watchguard Go…
How to allow the YouTube app to play videos through a Watchguard WebBlocker firewall proxy
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