Bluetooth and WIFI mutual interference problems and solutions

Dojammer 2021-12-28

I changed the front panel of my desktop computer so that my desktop computer has both Bluetooth and WIFI functions. Although my first laptop had Bluetooth and WIFI in 2008, I used to be poor. In addition to transferring files with my mobile phone, I used the most high-end things such as GPRS via mobile phone dial-up and Bluetooth headsets. , I have basically never played, and I have never paid attention to such problems until recently.

For some reasons, I moved my desktop computer to my living room to use it. Of course, there is also a network cable in the living room. When I first moved it down, I used the network cable to access the Internet. Recently, because the network cable needs to be connected to the network hard disk, I plug the network cable into the network hard disk. My desktop computer uses WIFI to access the Internet. The two walls are full of signals and in good condition. The power amplifier in my living room has Bluetooth function. Sometimes when listening to a song, I want to turn on the speaker and use the Bluetooth connection, so the following problems are found. #wifi jammer

1. Sometimes when I use WIFI to surf the Internet, I find that the speed is extremely slow. I use the PING command to query. The transmission between the computer and the wireless router has the phenomenon of packet loss. The machine is unstable. Soon, I feel depressed. At the time, Bluetooth was playing songs, and I didn't realize that this would interfere.

2. When I use WIFI to download files, the music played by Bluetooth is interrupted from time to time. I have never encountered such a problem before. I thought that the Bluetooth of the power amplifier was faulty. Check separately. The power amplifier is connected to the IPAD to play music normally. It seems that the problem lies with my computer. Restart the system. Hey, the fault remains. When there is a download, the Bluetooth headset will prompt that the device is busy, or the Bluetooth headset device cannot be found at all. Let me talk about it here, because using the IPAD, downloading songs and Bluetooth transmission to the speaker at the same time do not interfere with each other, which gives me an illusion.

cell Signal Jammers

I thought there was a system problem. I restarted the computer and entered the XP system. I was depressed. XP does not bring my WIFI driver. It is troublesome to download the driver. In addition, my mouse is a Logitech 2.4G wireless mouse. Because it is plugged into the front USB3.0 interface, it is not driven under XP. Needless to say, 3.0 can’t be used. It can’t even be used in compatible 2.0 mode. Just turn off the power. Forget it, restart the computer again. , Enter the WIN8 system. I turned it on when the Bluetooth was not automatically connected to the amplifier. I tested that the network speed was normal, and the connection to the router was also stable. Once I used Bluetooth to play songs and went online, the machine became unstable. The router I had been pinging also lost packets. And the phenomenon of delay, I still haven't thought of the interference problem here. It is the IPAD that paves the way for my wrong consciousness. I plugged the computer back into the network cable, and Bluetooth played music normally. Only then did I realize the problem of interference between the two.

So I went online and found out that the appearance of Bluetooth was originally used as a supplement to WIFI. They all use the 2.4G frequency band. Interference is inevitable, especially like downloading files at full speed on a computer, or like me using Bluetooth headsets or Bluetooth power amplifiers. In this way, the transmission frequency will be increased, resulting in more serious interference. At present, netizens solve this problem. The new notebook wireless network cards are basically 802.11n, so if the router is also 802.11n, set the 5GHz frequency band in the router and the notebook at the same time, so that the use of the machine basically does not feel mutual interference. Another solution is to have a Bluetooth Coexistence Mode in the advanced options on the wireless network card properties page, that is, the Bluetooth coexistence mode is enabled, and it feels good that there is no delay and interference. But my wireless network card may be relatively low-end, and there is no such setting option.

In addition, I learned that there is actually a problem of mutual interference between WIFI and 2.4G mouse. It's just that 2.4G mouse needs to transmit very little data when in use, and the mouse power is originally very small, because we can hardly feel the slight interference. (I am using a Logitech 2.4G mouse. I personally think that when using WIFI at the same time, the mouse sometimes drifts a bit. This is my personal experience and is not authoritative.) At the same time, I would like to thank some netizens for helping me test. If I use a notebook and use 2.4G headphones at the same time If it does, there will be a risk of extremely unstable network speed, because 2.4G headsets are relatively stable and have a lot of interference. What we can feel is the network speed.



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