Run the command "netstat -ab" in an elevated Command Prompt, PowerShell, or Terminal window to see a list of applications and ...
Or you can search online for known default passwords for this model—often “admin” and “password”. However, if the router was provided with an individualized password, as is usual with a Fritzbox and ...
If the problem is with the servers themselves—maybe your ISP-supplied DNS servers aren't properly configured—you can switch servers in order to optimize your web searches and speed up the process.