topic Re: Wi-Fi Hub version SG4K100136 - Devices Unreachable in Broadband

Wi-Fi Hub version SG4K100136 - Devices Unreachable

Grant — Thu, 25 Aug 2022 19:47:34 GMT

Hi,

Some devices disappear from my network after a day or two and the only way to get them back again is to reboot the router (rebooting the affected devices doesn't fix the issue). I first noticed this issue in March/April 2022 when I believe the router updated to version SG4K100136. I am hoping to find out if this is a known issue or if there are any settings that can be tweaked or an update that can be applied.

Examples of devices 'disappearing':

Soundbars and Chromecasts stops showing in cast selection lists.
AirPrint printer stops showing up on iOS when trying to print.
Printer web UI stops being reachable using it's IP address.

This isn't a problem with the wifi strength or interference as these devices are all in the same room and accessing the internet from laptop/tablet is unaffected.

Thanks for any help in advance!

Re: Wi-Fi Hub version SG4K100136 - Devices Unreachable

KeithFrench — Fri, 26 Aug 2022 08:01:38 GMT

It may not be electrical interference, but if they are all connected to WiFi, it could very easily be WiFi interference, which is not the same thing at all.

Slow speed, intermittent dropouts, breaks in the signal or no signal on some or all devices or no internet access might be caused by Wi-Fi interference from other local networks, which can also lead to a permanent reduction in speed. No ISP can be responsible for your local environment, this is mainly a byproduct of the popularity of Wi-Fi.

Generally speaking, the 2.4GHz band suffers much more from interference than the 5GHz band, but the 2.4GHz one can sometimes have a better range, but this all depends on your local area.

Have you had TalkTalk’s Wi-Fi optimisation disabled on your Sagemcom FAST5364 router? When this is enabled, as it is by default, it has the power to override any Wi-Fi configuration changes that I might suggest that you need to make. This will not help rectify this type of problem if Wi-Fi Optimisation is allowed to change my suggested settings. Only TalkTalk can do this for you, you cannot do it yourself. If not, just request they disable this for you in your reply.

The next stage involves sending out a guide to you to help you get me some important diagnostic results so that I can analyse them for you and recommend changes to your router configuration to solve them.

I only send this out to people who request it.

Re: Wi-Fi Hub version SG4K100136 - Devices Unreachable

Debbie-TalkTalk — Sun, 28 Aug 2022 09:17:50 GMT

Hi Grant

Sorry for the delay.

I can see that Keith has offered his support and advice. Do you still need help with this?

Re: Wi-Fi Hub version SG4K100136 - Devices Unreachable

Grant — Mon, 29 Aug 2022 23:52:37 GMT

Hi Debbie,

Yes, please can you disable Wi-Fi Optimisation on my router as suggested by Keith. I suspect the automatic channel switching is causing the problems I’m facing.

Thanks

Re: Wi-Fi Hub version SG4K100136 - Devices Unreachable

Debbie-TalkTalk — Tue, 30 Aug 2022 05:39:37 GMT

Hi Grant

The WIFI optimisation has now been switched off. Please let us know how you get on.

Thanks

Debbie

Re: Wi-Fi Hub version SG4K100136 - Devices Unreachable

Debbie-TalkTalk — Wed, 31 Aug 2022 10:22:14 GMT

Hi Grant

How has the connection been?

Thanks

Re: Wi-Fi Hub version SG4K100136 - Devices Unreachable

KeithFrench — Wed, 31 Aug 2022 15:28:38 GMT

Do you still want my help?

Re: Wi-Fi Hub version SG4K100136 - Devices Unreachable

Grant — Thu, 01 Sep 2022 01:01:18 GMT

Hi @Debbie-TalkTalk and @KeithFrench,

Thanks both for you're help. Since switching off the WIFI optimisation, everything has been working great!

No additional assistance needed 😀

Re: Wi-Fi Hub version SG4K100136 - Devices Unreachable

Anonymous — Thu, 01 Sep 2022 04:56:32 GMT

Morning,

I'm really glad to hear this. I'm just sending you a short survey via a PM now.

Thanks