Having performed numerous Office 365 Network assessments and reactive visits to resolve issues for customers, its apparent that the vast majority of issues are seen time and time again. So from this experience, here are my top 10 tips for you to optimise your O365 network performance and prevent issues...

Proxy servers are often in place at customer sites, happily ticking away handling Internet traffic for years before Office 365 came along. As Office 365 generally travels over port 443 (for Outlook and SharePoint at least) then what's to think about? Your proxy can handle this like any other SSL...

One of the things I'm regularly running into when looking at performance issue with Office 365 customers is a network restricted by TCP Window scaling on the network egress point such as the Proxy used to connect to Office 365. This affects all connections through the device, be it to Azure, bbc...

The Problem: One issue I run into time and time again when I do a network assessment for customers using Office 365, or troubleshoot issues with performance and connectivity with O365, is one with TCP Idle session settings on perimeter devices. Perimeter networks, including proxies and firewalls...

Having decided to start this blog to convey my experience with network analysis and troubleshooting, one subject instantly sprang to mind for my first post, TCP Chimney/Offloading. I get asked about this so often I have a ready email of advice around what it is, and what I (note not Microsoft, although...