Internet Compatibility Test - Instructions
Check your internet speed
Tharinda Lasika
Last Update 2 ay önce
In order to check if your system is able to view or run webinars with Flow, please use the following testing tools to determine the compatibility of your internet connection/network connection and computer.
We recommend turning off your VPN connection to prevent issues with audio/video during the webinar.

- Please visit the following site to test your internet connection. https://diag.flowapp.com/speedtest/
Important Information: We highly encourage you to visit this site and measure your connection before attending or presenting webinars hosted on Flow, to ensure you are on the most stable connection possible for an optimal experience.

Your connection must support the following configurations (these are mostly enabled by default except for work networks)
- All UDP ports - outgoing connection
- WS/WSS protocol
- STUN/TURN protocols
- WebRTC blockers such as browser extensions must be disabled. In Firefox, check "about:config" and in the search box, search for "media.peerconnection.enabled". This must be set to true
- Ports such as port 80, 443, and UDP port 53
2.1 What does this test do?
- Download: This is your download speed, in Megabits per second (Mbps), and represents how fast you can download files and data.
- The higher this number, the more data your connection can handle from our servers.
- The Flow requires at least a 2 Mbps download speed.
- We recommend at least 5 Mbps for an optimal experience
- Upload: This is your upstream speed, in Megabits per second (Mbps).
- This only applies to Hosts and Presenters, as they will be sending data from their computers to our servers
- The higher this number, the more data your connection can send to our servers with a minimal delay
- Flow requires at least a 5 Mbps upload speed.
- This only applies to Hosts and Presenters, as they will be sending data from their computers to our servers
- Latency (Ping): This is the amount of time between when data packets are sent to our servers and received back from our servers, measured in milliseconds (ms).
- The lower this number is, the less time it takes for data to be sent to and received from our servers, resulting in a better viewing and presentation experience.
- Please refer to this chart when measuring your Latency:
- 0-150 ms = Good
- 151-400 ms = OK
- 400 or greater = Poor
If you come below the requirements listed here for Download/Upload Speeds or Latency, you can follow these guidelines for improving your connection:
- Verify you are on the fastest, most stable network available:
- This often means being on a wired connection instead of wireless.
- While the speed of modern wireless networks is usually fine, sometimes they are not the most stable, due to many possibilities for signal interference which can be disruptive for a live webinar.
- Check for any software that may be filtering traffic from Flow servers:
- These can be things like anti-virus or anti-malware applications, ad-blocking plugins in your browser, or restrictions put on your computer or network by your Internet Service Provider (ISP) or IT Department (for corporate users).
- Ensure you have the following network ports open in your personal and network firewalls (you may need help from your IT department to do this):
- TCP 80
- UDP 80
- UDP 53
If you find trouble, chat with us from this portal (at the bottom right) so we could provide instant help.
