Tv won’t reboot

[Jane961]

Tv works for minutes  after a reboot before losing picture and sound returning me to a blank screen with my Sony tv red light flashing 8 times.

[Exiled-in-HH]

Is you Sony TV connected to an aerial or other device?

[Jane961]

It's connected with an hdml cable to the router

[Exiled-in-HH]

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@Jane961 wrote:

It's connected with an hdml cable to the router

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Do you mean Sky Puck?

Is the Sony TV connected to an aerial or other device?