topic Re: Intermittent Black screen flashing in Sky Stream

Intermittent Black screen flashing

BMorina — Wed, 17 Jun 2026 10:21:29 GMT

My TV keeps flashing a black screen intermittently when watching TV via Sky stream. This is not happening watching TV outside of Sky stream. Tried different hdmi ports and cables and this is not changing the behaviour. I saw several posts raising the same issue, so it seems this is not uncommon. Appreciate any advise on the matter.

Re: Intermittent Black screen flashing

GD1 — Wed, 17 Jun 2026 10:23:42 GMT

@BMorina To rule out any wifi speed issues open the Netflix app on the stream puck, go to Get Help, run connection test, what speed is being reported?

Re: Intermittent Black screen flashing

WelshGeezer — Wed, 17 Jun 2026 18:20:49 GMT

I encountered this issue with a Hisense TV. I had to switch the HDMI Format setting to Standard rather than Advanced. However, I suspect HDMI port 1 was failing because it worked with both settings on HDMI ports 2 and 3.

Re: Intermittent Black screen flashing

BMorina — Wed, 17 Jun 2026 23:32:07 GMT

I tried with both wireless and Ethernet connections. Both connection show excellent connectivity. Issue is persistent with both connections.

Re: Intermittent Black screen flashing

Angel_Aka — Thu, 18 Jun 2026 07:54:14 GMT

@BMorina wrote:
I tried with both wireless and Ethernet connections. Both connection show excellent connectivity. Issue is persistent with both connections.

What is "excellent connectivity" exactly? What speed did the Netflix network check report as being received?

Have you rebooted both the puck and your router?

Re: Intermittent Black screen flashing

BMorina — Thu, 18 Jun 2026 08:03:02 GMT

@Angel_Aka With wireless connection I get 251Mbps download & 34.7 upload. With ethernet cable i get 356Mbps download & 46.1 upload

Re: Intermittent Black screen flashing

Angel_Aka — Thu, 18 Jun 2026 08:06:22 GMT

@BMorina wrote:
@Angel_Aka With wireless connection I get 251Mbps download & 34.7 upload. With ethernet cable i get 356Mbps download & 46.1 upload

You won't get 356Mbps on ethernet because the ethernet port on Stream pucks is capped at 100Mbps.

Did you run the network check from the Netflix app on the puck itself?

Re: Intermittent Black screen flashing

BMorina — Thu, 18 Jun 2026 08:12:27 GMT

Thanks @Angel_Aka, I run it from my TV settings, so I assume this didnt go via puck.

I will try again later via puck and report back. Thanks again for your support.

Re: Intermittent Black screen flashing

Angel_Aka — Thu, 18 Jun 2026 08:20:25 GMT

@BMorina wrote:
Thanks @Angel_Aka, I run it from my TV settings, so I assume this didnt go via puck.
I will try again later via puck and report back. Thanks again for your support.

Yeah, the pucks can be susceptible to interference and require as fast and stable a connection as possible. The only way to find out what it's actually receiving is to run the network check from the Netflix app on the puck itself.

Run it a few times later and see if the speed fluctuates.

Re: Intermittent Black screen flashing

BMorina — Thu, 18 Jun 2026 14:00:21 GMT

@Angel_Aka Checked the connection several times of a two hour period , and got ranges from 89.74 - 90.41 Mbps

Re: Intermittent Black screen flashing

Angel_Aka — Thu, 18 Jun 2026 14:43:39 GMT

@BMorina wrote:
@Angel_Aka Checked the connection several times of a two hour period , and got ranges from 89.74 - 90.41 Mbps

In theory that should absolutely be more than enough... but if it's still not working on ethernet with WiFi turned off on the puck's network settings then I'd contact Sky and get the puck replaced.

Re: Intermittent Black screen flashing

BMorina — Fri, 19 Jun 2026 08:24:50 GMT

FYI - I played around with hdmi ports on my TV. Moving the puck to hdmi1 on my TV seems to have solved my issue, at least for several hours at the moment.
I saw some other posts were this was done but they reported that the issue came back after a couple of days. I will report back here is that is the case, else fingers crossed this is solved for good 🙏

Re: Intermittent Black screen flashing

Chrisee — Fri, 19 Jun 2026 16:13:09 GMT

@BMorina I suspect your issue isnt related to the bandwidth of the connection but is more likely an issue with the HDMI connection dropping briefly causing the black screen this can be caused by a faulty puck so if it returns talk to Sky to see if a puck switch helps. However if it doesn't it can be a fault on the TV.