GSX Blog

Skype for Business Voice, is UDP always better than TCP protocol?

Posted by Jean-Francois Piot on Tue, Mar 13, 2018

Skype for Business Online natively works with two main protocols, UDP and TCP. Microsoft, and most of the other VOIP solution providers, recommend to choose UDP over TCP.

But, is it always better? What is the impact and what are the advantages of one protocol over the other, specifically in your environment?

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Tags: Microsoft, Hybrid cloud monitoring, Office 365 monitoring, Skype for Business, cloud performance, skype for business monitoring, office 365 health, office 365 performance, fixing office 365, Skype

MSPs: Are Your Clients Happy?

Posted by Jean-Francois Piot on Thu, Mar 08, 2018

Like most of the IT, the MSP business has been profoundly changed by the cloud era. MSP were mostly in charge of the run & maintain of clients infrastructure delivering applications to end-users. But now that a lot of these infrastructure moved to a PaaS, IaaS or SaaS model, the role of the MSP has become less strategic for many of their client.

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Tags: Partners, Hybrid cloud monitoring, MSP World, MSP, Office 365 monitoring, cloud performance, SysAdmin Top Issues, office 365 health, office 365 performance, fixing office 365

Top Office 365 Issues: Unable to Login to Mailbox Due to Sync Problem

Posted by Pavan Reddy on Thu, Feb 15, 2018

When users are unable to access their mailbox or SharePoint on Office 365, this can sometimes be due to sync issues.

Most organizations will use AAD connect to sync their on-premises identities to their Office 365 environment, so it’s important that these two systems communicate to make it possible for users to access what they need on Office 365.

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Tags: Office 365 monitoring, ADFS, ADFS monitoring, Microsoft identity management, Azure AD Connect, ADFS performance, ADFS issue, SysAdmin Top Issues, office 365 health, office 365 performance, fixing office 365

Ten Years At The Helm: But Who’s Counting?

Posted by Antoine Leboyer on Thu, Feb 08, 2018

Today marks the 10th anniversary of my taking the reins at GSX.

It’s understandable if you aren’t aware of this day’s significance, but it’s anything other than “just another day” for me. While I am not tempted to celebrate by buying a fake Time magazine cover with my picture on it, I thought it would be a good occasion to look back and share the most crucial elements of these last ten years.

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Tags: GSX Robot User, APM, Office 365 monitoring, office 365 health, office 365 performance

End-User Experience to the test: How does ‘MAPI/ HTTP’ really compare with ‘RPC/ HTTP’

Posted by Jean-Francois Piot on Tue, Feb 06, 2018

Since Microsoft announced the end of the support for the RPC protocol in Fall of 2017, this has been a vital question.

At GSX, we reveal the ‘facts behind emotions’ with our Robot Users. GSX Robot Users compare real performance in different environments (Outlook 2016 with Windows 10, Outlook 2013 with Windows 7) and typical network issues (packet loss, latency, etc.).

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Tags: Exchange Online, Office 365 monitoring, performance monitoring, skype for business issue, SysAdmin Top Issues, office 365 health, office 365 performance, DEM, MAPI, RoboTech, Outlook

Top Office 365 Issues: User complaints on ‘unable to login to Skype’ and see presence status

Posted by Pavan Reddy on Fri, Feb 02, 2018

Skype for Business is a powerful part of Office 365, but oftentimes users encounter frustrating issues with the service. When you’re logged into Skype, you’re supposed to be able to share your status with others who are logged on. However, users often complain that this feature isn’t working.

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Tags: Office 365 monitoring, skype for business issue, Skype for business performance, skype for business monitoring, SysAdmin Top Issues, office 365 health, office 365 performance, fixing office 365

How to: Measure the performance impact of Meltdown security patch

Posted by Gregoire Lecomte on Wed, Jan 10, 2018

Intel just exposed a major vulnerability in the x64 processor family. As a consequence, Microsoft will deliver a driver update in the next few days.

Today different forum experts forecast between 5 to 40% of degradation "depending on the task and processor model." Already patched Linux systems show more than 50% of degradation. The patch may have important consequences on environments and user experience.

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Tags: Office 365, Office 365 monitoring, Security, office 365 security, SysAdmin Top Issues, office 365 health, office 365 performance, fixing office 365

Top Office 365 Issues: Network Latency issues

Posted by Pavan Reddy on Tue, Jan 09, 2018

Whenever a user complains about slowness in accessing a mailbox, IT administrators often suspect it’s due to an issue with the network. Still, they don’t always have enough information to confirm this.

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Tags: Office 365, Exchange Online, Office 365 monitoring, SysAdmin Top Issues, office 365 health, office 365 performance, fixing office 365

Top Office 365 Issues: Mail Delay Complaints

Posted by Pavan Reddy on Tue, May 30, 2017


A top complaint with Microsoft Exchange Online is delays in sending and receiving emails. This leads to a loss of productivity among employees, and also takes up a lot of time for IT administrators.

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Tags: application performance monitoring, APM, Office 365 monitoring, SysAdmin Top Issues, office 365 health, office 365 performance, fixing office 365, outlook slow, Use cases

Network Performance: End-User Experience Matters Everywhere!

Posted by Juliette Ollagnier on Tue, May 23, 2017

It’s almost impossible to get any work done when network performance issues get in the way. Research shows that network issues contribute to declines in revenue and end-user satisfaction, but it doesn’t take a breadth of data to know that outages are a major headache. That’s why it’s crucial for IT administrators to stay on top of network performance monitoring, anywhere, anytime.
So what do you do when users outside of your main office complain about slow networks or applications?

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Tags: application performance monitoring, APM, End user Experience, Network Performance, Network latency, Network Diagnostic, office 365 health, office 365 performance