G Suite diagnostic tools – G Suite Administrator Help

ou can use the G Suite Toolbox to troubleshoot issues with G Suite.Browser debuggerYou can use Browserinfo to see if your browser has any connectivity issues. With this tool, you can:Collect important browser parametersDetect installed plug-insCheck connectivity by:Calculating HTTP latency to Google servicesDetecting whether a firewall rule has impaired connectivity

Source: G Suite diagnostic tools – G Suite Administrator Help