ishanghai电脑连不上-连不上老师电脑

I'm sorry, but I'm not sure what you mean by \"ishanghai电脑连不上\". Can you please provide more context or information so I can better understand and assist you?
If you're trying to connect to a computer or network that is named \"ishanghai\" and that computer or network is not accessible, there may be a few reasons why:
1. The computer or network may be experiencing technical problems, such as a network card or Wi-Fi signal issue.
2. The computer or network may not be connected to the internet, or may be configured to connect to a different network.
3. The computer or network may have been intentionally taken down or configured for maintenance.
4. You may not have the correct permissions or access to connect to the ishanghai computer or network.
If you're able to provide more information about the situation, I may be able to provide additional assistance with解决方法.