Tv picture flickering in and off with sound on

[Sdoodle1]

Hoping to find an answer as to why my tv screen is flickering on and off while the sound remains on. Tried everything. Tested the tv in another location and no problem. Brought another tv in and tried on the flickering location and it had the same problem. Tired different HDMI cable, unplugging the modem and plugging directly into a dvd player..problem persists. Turned off wifi printer and fridge. What is causing this issue in this particular location? Could a neighbouring hot tub be the cause? Don’t know what has changed and at my wits end.

[57]

Many items can interfere with WiFi.  Do a web search for WiFi interference. The most common devices are things like Microwave Ovens, hair driers, large motors, etc.  You will need to track down the source of the issue by turning things off/on and watching for the issue on the TV.

This can probably be avoided by having an Ethernet cable between the Gateway and the Rogers box if that's possible for this location.

[Crash7]

I’ve been having the same problem. I thought it was an HDMI issue but I’ve tried multiple cables and switching inputs with no resolution. I am running a wired Ethernet connection so it can’t be a wifi issue. Very frustrating.

[RogersMoin]

Hello, @Crash7.

We appreciate you joining this thread and sharing your similar concern. Thank you for trying different HDMI cables and inputs and using a wired Internet connection.

Let's try isolating the cause of the flickering:

• What's the make and model of your TV?
• Is the firmware up to date?
• What's the current refresh rate of your TV? If it's set to 120Hz, can you drop it to 60Hz?
• Assuming it's a smart TV, does it flicker when streaming from apps like YouTube?

We look forward to hearing from you.

Cheers,

RogersMoin

[-G-]

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@Crash7 wrote:
I’ve been having the same problem. I thought it was an HDMI issue but I’ve tried multiple cables and switching inputs with no resolution. I am running a wired Ethernet connection so it can’t be a wifi issue. Very frustrating.

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When you unplug the Ethernet cable, is the set-top box able to get a Wi-Fi connection?  Also, are you running in a standard, Rogers-supported configuration or do you have your Xfinity Gateway in Bridge Mode and running on your own external router?

From time to time, the set-top box will contact the Gateway over a special hidden SSID to obtain the Wi-Fi credentials that are configured on the gateway, and will then attempt to establish that Wi-Fi connection.  If that fails (e.g. this can happen when the Gateway is in Bridge Mode and you have a different Wi-Fi network name and passphrase configured in your own network gear) it can cause the stuttering that you described, even with a wired Ethernet connection.  I know this sounds crazy but the Xfinity set-top box is NOT a generic media player (such as a Roku or Apple TV) and it can become unstable when it is not run in a Rogers-supported configuration.