Generally speaking, it is a network connection problem. If it still doesn't work, it should be the computer firewall or LAN gateway that restricts the network. I suggest you try the following methods: change the download port number to 9000 or near in Cool Dog Options-Network Settings, and restart Cool Dog. If you still don't download it, it may be that your computer's firewall or LAN gateway settings limit the use of cool dog software. If it is blocked by computer firewall or antivirus software, as long as the cool dog software is allowed to run on the firewall or antivirus software. If it is a problem of setting up a LAN gateway, it can only be handled by the network management. The best solution provided by netizens: This is a clinical trial. Feasible. Recently, I saw a lot of feedback from netizens searching for songs in the forum, prompting that "the search has timed out". Here is a small solution that you can try. The premise is to test your own software first: 1. Can I log in to my account normally or register my account normally? If the account cannot be registered and logged in, it means that there is something wrong with the network, and this method is invalid. If not all of them can be searched, this method is invalid. On the contrary, as long as there is a place to search, it can be solved. Put the downloaded icon into the cool dog directory to replace the original cool dog icon. Method 2: 1) It may be that the firewall restricts the cool dog, and it is necessary to release the cool dog in the firewall. 2) Or the used network (such as LAN) limits the communication ports that the cool dog needs to use. 3) If the UDP port is restricted by the local area network, you can try to use the proxy set by the browser: