What information should I provide to my ISP if I need to contact them about a 'Can't connect to this network' error?

When contacting your ISP, be prepared to provide the following: your account number, the type of device you're using (laptop, phone, etc.), the error message you're receiving (including the error code if available), the steps you've already taken to troubleshoot the issue (rebooting, checking connections, etc.), and whether other devices on your network are experiencing the same problem.