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Instabil Bluetooth connection

 I´ve got a huge problem regarding my new Nokia 3.1.

The Bluetooth connection is very instabil. It disconnects from my Ticwatch E 1-2 times a day. It´s not possible to reconnect the watch until the phone is restarted.

My second problem is the connection to my Bluetooth car stereo. (VW RCD330 Plus)

When this is the only bluetooth connected device, everything works perfectly. But when my Ticwatch or an other device is connected at the same time, the bluetooth audion is interrupted every few seconds. As soon as i disconnect the second device, everything works great again.

Is there anybody experiencing simular problems?

Hi, I had some issue with a Bluetooth keyboard, the other evening : keys were ultra slow and sometimes stuck as "pressed" even when I was releasing it and I had to disconnect it.

No problem with the mouse once it's connected, until I'm looking for new devices or searching with Nearby (the mouse becomes unstable during the search).

When I turn off the bluetooth and turn on the bluetooth again, mouse is sometimes very slow to reconnect, I have to go into the menu and to click on it and even there, sometimes it's not fast.

I was using this keyboard and this mouse with another phone before (Lumia 640) and there was no problem.

I will try to play with the bluetooth functionnality of my computer in order to see if it's stable or not, but sometimes problem with bluetooth or WiFi are related to 2.4GHz used everywhere. A computer that embeds Bluetooth is not likely to be fast on WiFi when Bluetooth is enabled and active for example.

Since my WiFi is 5 GHz this may not be the case for my phone but anyway, I'll try to play with this

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After some tests I didn't successfully monitored the bluetooth bandwidth with WiFi enabled/active or not, but I successfully did the opposite.

WiFi bandwidth (reception) is really limited by bluetooth activity (on WiFi 5GHz, from 80 Mbit/s reception to 22 Mbit/s reception when bluetooth is active with a moving mouse). Even if the 2.4GHz WiFi, from stable 33 Mbit/s with bluetooth turned off on the phone, and bluetooth mouse turned off too, to unstable 5 to 25 Mbit/s with a 13 Mbit/s average value when bluetooth is active with a moving mouse.

Different speeds on the 5GHz WiFi bandwidth means that Bluetooth and WiFi are sharing some hardware, may be simply the antenna.

Interferences between bluetooth and WiFi bandwidth is something that can often be seen on computers that embeds both of them inside the same Micro-PCI-Express cards, but it's unfortunate that interferences make problems with the sounds. For this point, I have no Bluetooth speaker nor headset to give any feedback here about the sound trough bluetooth.

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