1 Set up the router according to the routine to ensure that you can access it in the LAN
2 Log in to the router and find the following interface
3 Switch to "Configuration"
http://blog.sina.com.cn/s/blog_73dac6b50102ztik.html
Refer to this article to replace the software source with Tsinghua’s mirror source, or go to Tsinghua’s open source website to find the latest link. The default source of the router is outside the wall, which may not be accessible or the speed is very slow.
4 Return to the previous page
Download and install mosquitto.
Remarks: When I was testing, the above prompt appeared, reminding that I need to update with Tsinghuayuan through the command, because there is no command line, so I can’t update, indicating that this method is flawed, you can restart it several times to try.
5. Set mosquitto to start at boot in the system item - start