OT ish using Bluetooth crashes my wifi router...

I regularly stream audio (Spotify) over Bluetooth from either my phone or a tablet to a Bluetooth receiver connected to my old but good hifi.
Every session without fail, doing this makes my wifi router reboot more than once. I know as my phone will drop onto 3g whilst the router reboots.
Router is a Thomson tg 785 from Plusnet several years ago.
Any thoughts /pointers gratefully received TIA
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Jim K


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Not very well screened for frequencies it does not emit itself perhaps? Brian
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On Mon, 6 Jun 2016 09:50:35 +0100 (GMT+01:00), jim wrote:

And the data stream from spotify is getting to your phone/tablet how?

Which implies that the data stream from spotify is reaching your phone/tablet over WiFi from the router that crashes?

Any firmware updates available? It's not unknown for "domestic" routers to crash when asked to maintain a reasonable data stream from a single source. Mind you spotify is only audio so shouldn't be particulary taxing compared to video...
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On 06/06/2016 09:50, jim wrote:

Bluetooth and 2.4g wifi use the same frequencies so do interfere. However that shouldn't cause a crash.
Does the router crash if you stream the same thing using a wired connection? Have you checked for a firmware update?
It maybe easier to buy a new router than to diagnose it.
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On 06/06/2016 9:50 AM, jim wrote:

Long shot...
All the wifi of routers everywhere share just 16 frequency bands. By default, all sending gear and receiving gear is defaulted to band 7. If you change the band, you must do on all your other devices in & out. However, you will be more or less garaunteed a full band to your self as no one else ever changes from the default.
Using the default of 7 means that all neighbours are also clashing signals that your net has to abandon and ask for a repeat send. You get lets of dropped packages.
If your Wifi is under such stress already, the bluetooth may be the tipping point.
Otherwise, I have nothing else to offer.
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RayL12 wrote:

14 channels at 2.4GHz, of which 13 are legal in the UK and one of those tends to have patchy support.

Not IME, channels 1,6,11 are the common bands as they don't overlap.

Not so, if you change the channel on the access point/router, all connected clients will quickly follow it to the new channel, without any reconfiguration.

Many routers automatically and continuously select the "best" frequency.

Bluetooth uses spread spectrum frequency hopping on a larger number of narrower channels, an attempt to avoid interference from other devices (e.g. WiFi) sharing the 2.4GHz band.
Wouldn't surprise me to find interference between bluetooth and wifi devices in a particular situation, does surprise me it crashes the router so repeatably.
Plusnet do have some Thomson firmware on their community website, if that didn't help I'd buy or scrounge a router from someone.
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http://www.ecnmag.com/article/2012/03/wi-fi-and-bluetooth-coexistence
may be of interest
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On Fri, 10 Jun 2016 07:28:26 +0100, Andy Burns
<snip good stuff>

*Personally* I like to first have a listen and see what else is out there and at what signal strength (WiFi Analyzer app on my phone [1]) and then position the gear I'm working on somewhere 'quiet'.
Cheers, T i m
[1] I have also a WiSpy dongle (WiFi spectrum analyzer) and that was good for finding rouge kit that was broadcasting all over the WiFi spectrum. One was a cheap TV sender thing and the other the rear speakers on a surround sound system (that had stopped functioning and gone bad (or the other way round)).
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T i m wrote:

When I only had 2.4GHz I used to do that, and preferred CH13 when that was an option.
Now I have a dual band router choice of channel barely seems to matter (due to fewer competing 5GHz signals with shorter range and worse penetration of walls).
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