Brand Portal supports accelerated download of large asset files, by integrating with IBM Aspera Connect install-on-demand application. The application uses proprietary technology to remove TCP overheads and helps improve transfer speed for files. This ensures enhanced download experience. Users distributed across geographical locations, experiencing high latency, can also benefit from this capability.


IBM Aspera Connect enables speedy download of large asset files from Brand Portal and shared links, but download speed may vary depending on factors such as network bandwidth, server latency, and geographical location of clients.

To configure specific tenants for accelerated file download, administrators need to Enable Download Acceleration (which is disabled by default) from General Settings in the administrative tools panel.

If enabled, Brand Portal users can significantly reduce the time taken to download the desired asset files from Brand Portal or through Shared link by installing the Aspera Connect client.


Prerequisites to accelerate file download

To be able to use the faster file download functionality, make sure:

  • Ports 33001 (both TCP & UDP) are opened in the firewall by administrators. For more information on the prerequisites to using Aspera download accelerator, refer Aspera Connect Client documentation.

    Following are the download domains for different geographical locations globally:

    Region Domain
    NA OR1
    NA VA5
  • You are logged in as Administrator while executing MSI installer file, as you cannot install Aspera Connect under the Guest account.

System and browser requirements

System and browser requirements for Aspera Connect 3.8.0 are as follows:

OS OS Version Browser Required Libraries

Windows 7, 8, 10

Windows Server 2008, R2, 2012 R2, 2016



Chrome 64-66  
Firefox 57-60
Firefox ESR 52
IE 11
Microsoft Edge 39-42 

10.11 - 10.13



Chrome 64-66  
Firefox 57-60
Firefox ESR 52
Safari 11
Linux (64-bit)

RHEL 6 – 7

CentOS 6 – 7

Debian 7 – 9

SLES 11 – 12

Fedora 26 – 27

OpenSUSE 42.3

Ubuntu 14 – 17

Chrome 64-66

OpenSSL 1.0.2g or higher

Mesa EGL

glib2 2.28 or higher


Firefox 57-60
Firefox ESR 52

For platform support matrices of different versions of Aspera transfer client, see Aspera Connect platform support matrix.

Expected download performance using file accelerator

The following table shows expected time to download a 1GB file using Aspera Connect file download accelerator from Brand Portal, considering latency in different geographical locations:

Client Location

Latency between Client and Server

Speed with Aspera File Transfer Accelerator

Time taken to download 1 GB file

US West (N. California)

18 milliseconds 

36 MB/s

55 s

US West (Oregon)

42 milliseconds

36 MB/s

55 s

US East (N. Virginia)

85 milliseconds

35 MB/s

56 s

APAC (Tokyo)

124 milliseconds

36 MB/s

61 s


275 milliseconds

13.36 MB/s

171 s


175 milliseconds 

29 MB/s

69 s


179 milliseconds

35 MB/s

57 s


196 milliseconds

34 MB/s

58 s


Cited data are as per the tests conducted in lab and are only indicative. Observed results may vary due to factors such as network bandwidth, server latency, and client location.

Download workflow using file accelerator

To download assets faster from Brand Portal:

  1. Login to Brand Portal through a preferred browser.

  2. Browse and select the desired asset file, folder, or collection to download. Tap/ click download option.

    Download dialog appears with Enable download acceleration option selected.



    The functionality to send email notification with the link to download assets is presently not supported while faster downloads are enabled.

  3. Tap/ click Download.

    To speed-up the download experience on your Brand Portal tenant account, you need to have Aspera Connect client application installed on your system.

  4. Download Aspera Connect Client

    If Aspera Connect client is not installed on your system or the existing installed Aspera Connect client is out of date, a prompt is displayed on browser page from where you can download the system specific Aspera Connect client by selecting Download Latest Version.


    You can also download the latest version of Aspera Connect from Select Download Now and follow the instructions. This downloads the latest installer.

  5. Install Aspera Connect Client.

    To install IBM Aspera Connect client setup, run the setup from .msi file of IBM Aspera Connect client application and follow the installation wizard.

  6. Once the client is successfully installed, either refresh the browser page and initiate the download steps again or select Restart in asset Download dialog box (Step #2).

    When using Aspera Connect for the first time, the browser will prompt to open the link using IBM Aspera Connect. To skip this dialog in future, enable the checkbox Remember my choice for fasp links.


    This message will be different on the different browsers.

  7. A dialog appears asking you to confirm whether the transfer should proceed. Select Allow to begin.
    To skip this dialog in future, enable the checkbox Use my choice for all connections with this host.

    Download begins. A dialog box shows the progress of the download. You have the option to pause, resume, or cancel the download.

    Aspera Connect application provides an Activity Window on the system where user can view and manage all transfer sessions. For more information, refer Aspera Connect Client documentation.


    On successful completion of download, dialog box shows the location where assets are downloaded to user's system. In case of failure, it shows error.


    There is a known limitation in Aspera Connect client application that no prompt to select download location appears if the option Always ask me where to save downloaded files is enabled under the tab Transfers within Preferences. Users need to provide the location in the textbox Save downloaded files to before any download begins.

Using file accelerator on Microsoft Edge browser

Microsoft Edge runs in Enhanced Protected Mode (EPM) preventing communication with the Aspera Connect server, while on same private network or with a Trusted Site. Therefore, a pop- up shows up every time a connection with the server is being established.


To use accelerated download functionality on Microsoft Edge, remove the Brand Portal site from the trusted site list.

  1. Open the Control Panel (you can do so by pressing the Window key + X, then selecting Control Panel.

  2. Go to Network and Internet > Internet Options. Click the Security tab.

  3. Click the Trusted sites zone, then click Sites.

  4. Remove Brand Portal site from the list.

Aspera Connect Client Preferences

There are a few useful preferences which can be set in IBM Aspera Connect Client preference by right clicking the icon and selecting Preferences.


You can set the default download location.


Also, the Aspera Connect client can be marked to automatically start on system startup so that the connect client is running and available for the download to begin faster.


Troubleshoot issues with download acceleration

If download acceleration is not working for you, follow these steps to troubleshoot:

  1. Check that ports are not blocked, by visiting from your machine.

    If ports are not OK, then reach out to your network team an ensure that Ports 33001 (both TCP & UDP) are not blocked in the firewall.

  2. If the ports are OK then check if your network is not slow, by measuring the available bandwidth using

    If the bandwidth is a few (1-10 Mbps) or in Kbps, then use Aspera Preferences and try to limit the bandwidth equal to the available bandwidth.

  3. You may also confirm if the downloads from Aspera demo server are working:
    (login: asperaweb, password: demoaspera)

  4. If none of the above troubleshooting steps work, deselect the option Enable Download Acceleration and use the normal download.

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