Solve the problem of just-established and disconnected wireless hotspots in ubuntu12.04

Solve the problem that ubuntu wireless hotspots have just been established and disconnected. it is really convenient to establish a wireless hotspot in ubuntu. I will not talk about how to establish it. Baidu can find a lot of problems, but many people will encounter such problems, the hotspot was just established and immediately disconnected. I tried again. I Google Baidu... solve the problem that ubuntu wireless hotspots have just been established and disconnected. it is really convenient to establish a wireless hotspot in ubuntu. I will not talk about how to establish it. Baidu can find a lot of problems, but many people will encounter such problems, the hotspot was immediately disconnected when it was just established. I tried it again. Google Baidu has many methods, such as removing dnsmasq, but I tried it for a while. later I accidentally solved it, I will summarize the methods. First: sudo netstat-anlp | grep-w LISTEN. find the tcp listening port 53. you can see that the process name is dnsmasq, and kill (process number) to kill the dnsmasq process. Then, select the hotspot in the network settings. you can see that the connection is established. It will not be disconnected. If no Wi-Fi signal is displayed when the phone is connected, the hotspot is used again after the hotspot is disabled. after one or two connections, the hotspot is normal. You can enjoy the wifi below, without wifi is not happy!