If you are having issues with connecting to office 365 services in your office I recommend running the following tool to test your connectivity. Its quite a thourgh test
http://em1-fasttrack.cloudapp.net/o365nwtest
- The first check is a port test to see if the ports are open.
- SMTP – (TCP-25)
- HTTP – (TCP-80)
- https – (TCP-443)
- imap – (TCP-993)
- pop – (TCP-995)
- stun – (UDP-3478)
- lyncpush – (TCP-5223)
- rtp-audio – (UDP-50000-50019)
- rtp-video (UDP – 50020-50039)
- lyncft – (TCP – 50040-50059)
- The second test is a route (hop) test
- The third test is a speed test.
- VoIP Test which is a jitter and packet loss test
- Capacity test which shows the amount of packets the upload/download can handle without packet lost.
- Round Trip time
- Packet loss
- The next three tabs show the data in graphical, summary and advanced forms. If you click on the summary tab and select test audit report this will bring up a URL you can copy and use later to bring back the results of this report.
- Having a high consistency of service is required to make sure you do not get outlook connection dropouts (80%+)
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