iTutor Technical Requirements

Updated 6/1/2022 for Big Blue Button

Written by iTutor Customer Support

Last published at: October 24th, 2022





This article will outline the technical requirements for your students and staff to engage with the iTutor platform successfully. Please provide this information to your school or district team that manages the network, hardware, and security policies for your online programs. 

NoteWe recommend all users ensure they are meeting the minimum requirements for BigBlueButton HTML5 prior to their first live session. If you would like to test your connection prior to joining, please feel free to do so at: https://test.bigbluebutton.org/.

Email Communication: 

As part of the iTutor service, your students and staff may be contacted via email regarding schedule changes, password reset requests, or confirmations of enrollment. To ensure those messages are not filtered by your systems please make sure to whitelist the following email domain for your team. 

  • *@itutor.com


Hardware Requirements: 

To ensure your students and staff are able to successfully access the iTutor program please confirm that they meet the minimum device requirements of the program.

Device Browser Version Note
Desktop/Laptop Chrome, Firefox, Edge Latest IE and legacy EDGE browsers are not supported 
Mobile iOS (12.2+) Safari Mobile Latest
Mobile Android (6.0+) Chrome Mobile Latest

IMPORTANT: at this time screen sharing is not supported on mobile devices. Presenters who wish to use the screen sharing function should use a laptop, desktop, or Chromebook device. 

 Processor: 

Laptop/Desktop computer with at least 2+ GHz processor (any computer bought in the last three years should be fine)

EX: Intel Core i5, i7, or i9 Processor (For Windows Computers)
EX: Apple M1 Processor (CPU, for Apple Computers)

Chromebook with at least 1.5+ GHz processor. 

EX: Intel Celeron Processor

Memory (RAM):

4-8 GB of RAM

Pop-Up Blocking:

To reduce any issues for students that may be taking testing with iTutor, or accessing assignments that may produce pop-ups it is recommended to also clear Pop-Ups for iTutor. 

Network Requirements: 

Bandwidth Requirements: 

iTutor recommends at least 1.0 Mbps/second upstream and 2 MPBs/second downstream for concurrent users of the programTo check bandwidth use, https://speedtest.net/

Decision Tree
Please provide the following information to your network team to ensure access is allowed for students and staff to access iTutor.com. 
  • Port Settings
  • Mobile Device Setting
  • URL List
  • Add Button
If you are running a very restricted network or cannot set your policy based on wildcards you may need to access the iTutor IP ranges to clear traffic to our program. Please find the list below for the iTutor IP Ranges:


- 40.76.61.116

- 40.76.63.133

- 40.121.161.152

- 40.121.162.18

- 40.114.80.120

- 13.68.181.237

- 13.82.131.101

- 13.82.131.244

- 40.87.126.227

- 104.41.133.86

- 104.211.13.140

- 168.61.46.101

- 13.68.136.91

- 23.96.8.147

- 75.126.252.101

-75.126.252.102

-75.126.252.109

-75.126.252.103

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Should your school district, school, educators, or learners need to provide white list access to specific URLs, please enable the following servers:



In addition, we need to ensure we have *.itutorlms.com established as a white list access as well.

In addition, we need to ensure we have *.i

In addition, we need to ensure we have *.itutorlms.com established as a white list access as well.

tutorlms.com established as a white list access as well.
Note: If a firewall that blocks the UDP connections for the user, it would cause the media connections to "tunnel" through port 443, which, if it is behind a firewall, the user may experience performance issues with sharing and viewing audio/video.

Each user should be able to make the following TCP/IP and UDP network connections:

Protocol    Port(s)    Description

TCP/IP    80    HTTP

TCP/IP    443    HTTPS

UDP    16384-32768    Encrypted WebRTC audio, video, and screen share media stream (DTLS-SRTP)




The following settings are recommended for all users connecting to BigBlueButton from a mobile device:

  1. For data network, we recommended 4G LTI for best results or a minimum 3G Network to use audio, view presentation content, and receive screen sharing.

  2. For connection via wireless, we recommend private versus public networks.

  3. For device settings, we recommend reducing device usage while connecting to BigBlueButton; closing applications that may run in the background, and reducing browsing activities. 

Additional Recommendations for Moderator/Presenters

Moderators and presenters can join BigBlueButton using a mobile device, however, the use of more bandwidth-intensive features such as screen sharing may be limited. 

We recommend Moderators and Presenters connect from a desktop or laptop device whenever possible to ensure all features and functions available in BigBlueButton are accessible to the user.


IMPORTANT: at this time screen sharing is not supported on mobile devices. Presenters who wish to use the screen sharing function should use a laptop, desktop, or Chromebook device.

Should your school district, school, educators, or learners need to provide whitelist access to specific URLs, please enable the following servers:



In addition, we need to ensure we have *.itutorlms.com established as whitelisted access as well.


Note: If a firewall blocks UDP connections for the user, it would cause the media connections to "tunnel" through port 443, which, if it is behind a firewall, the user may experience performance issues with sharing and viewing audio/video