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Disney + buffering with Chromecast Ultra

Community Specialist
Community Specialist

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Original Poster: Stephane Dalle

For a couple of month now I have buffering issues with my Chromecast Ultra only with Disney+ (It use to work pretty well). I have fiber connection at home (1Gbps), and do not have the same issue with Netflix or Prime Video.

It freezes for less than a second but It is pretty random, sometimes it freezes 2/3 times in a movie sometimes 15 times.
It is really annoying, I have another Chromecast (not ultra) and with this one I never had this issue (No issues on Ipad and Iphone either).
I use the Chromecast Ultra connected with Ethernet cable through powerline (I checked and I have roughly 250 Mbps) and I can watch 4k movies on Prime video without problems. 
Am I the only one ?
Here is my FW version : 1.50.230474

Community Specialist
Community Specialist
Hello, thanks for taking the time to post your issue.
Does your phone, TV or router have a task killer app, standby, firewall, antivirus, sleep mode, power saver, a parental control, tv HDMI-CEC settings, wifi network extender, or electromagnetic devices (stereo receiver, DECT cordless phone, microwave, baby monitor, refrigerator, LCD monitor, etc) causing interference? 
A wifi repeater may cause a micro second delay.
If you have DECT or baby monitor, or other bluetooth devices, make sure their batteries are fresh and check their user manuals about changing channels. Speaking of channels, if you have an Android device, install the Google Play app, Wifi Analyzer and run it. Your wifi router may be on a congested channel. Try channel 1, 6 or 11. Not Auto setting.  Please keep in mind that resetting or making changes to your router settings may have unintended consequences. If you have questions or concerns, please consult your router manufacturer or Internet Service Provider before making any changes.
From: James M
Product Expert