Network - Wireless & Wired Connections

Help & troubleshooting for network issues, including connecting your device to your home Wi-Fi network, connecting to public networks, troubleshooting wireless issues & ethernet connections, and optimizing streaming performance.
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Alan_G
Level 7

serial number not recognised

Hi, I'm having buffering issues and yet all other devices show 40 to 200 mb/sec. I see you can get a free longer HDMI cable at my.roku.com/hdmi 

However, every time I put the serial number that is shown on my Roku, it says that it's not recognised. Why is this ?

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5 Replies
renojim
Level 21

Re: serial number not recognised

That's only for sticks.  It would serve absolutely no purpose for any other device.  What's the model number of your Roku?

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Alan_G
Level 7

Re: serial number not recognised

Hi, i have an Roku Express 3930EU.

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renojim
Level 21

Re: serial number not recognised

The short extender cable is not available for that model and wouldn't do you any good anyway.

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Alan_G
Level 7

Re: serial number not recognised

Why do you think that I'm getting buffering when all other kit using 2.4GHz signal on is reading 30 to 40mb/sec. Does the Roku need faster speed than that to show HD. I didn't  know that this model does not receive the 5GHz signal because I get 200mb/sec through that. I'm strongly thinking of sending it back

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renojim
Level 21

Re: serial number not recognised

30 to 40 Mbps is more than enough, but is your Roku getting that?  You should be able to see the speed it's getting at Settings->Network->About.

Have you tried other channels (keeping in mind that it only supports channels 1 to 11)?  Also, Wi-Fi speed is only half of the issue.  If there's something going on between you and the source of the video then there's not much you can do about it.  Do all channels/apps buffer or just one or two?

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