The system requirements to attempt a test on Mettl platform is mentioned as follows -


     
1 Network Speed
Check if the candidates have a stable internet connection at their end with proper speed.
A proxy for this is if they are able to login into their email accounts without difficulty.

Upload Speed : 

For webcam proctored test - Minimum speed => 256 kbps

For non webcam test - Minimum speed ->100 kbps

You can check Internet speed on following sites:

Note
Please make sure there is no restrictions for Mettl Test on the network, as there are some blocks in the office network or laptop.
2 Firewall Settings

Grant necessary firewall permissions to allow all requests from all sub-domains of mettl.com in any of the following manner:

  1. If possible allow all access from the network to *.mettl.com
  2. if wildcards are not allowed in the firewall configuration rules, then please allow all access to the domain tabulated below:
  3. If domain names are not possible to be configured, then please allow all access to the following IP Addresses:

 Domain Static IP   Dynamic IP
*.mettl.com
54.251.150.250

tests.mettl.com

CNAME of Load Balancer
prod-tests-mettl-new-1533539086.ap-southeast-1.elb.amazonaws.com

pr.mettl.com

CNAME of Load Balancer
pr-prod-1783367669.ap-southeast-1.elb.amazonaws.com

mediaserver.mettl.com

52.77.125.32
Ports UDP :  Range  49152 - 65535

api.mettl.com

54.251.164.106

static.mettl.com

54.169.13.137
chat.mettl.com 54.255.153.35
streaming.mettl.com*

54.255.199.30*

Apart from the above mentioned, following are the IP details which needs to unblocked

I.P      : 52.77.142.113
Ports  TCP :  3478
Ports UDP : 3478 , Range 49152 - 65535


Opening these ports will make the service faster and efficient while giving you better quality images.


Note: 

  1. IP addresses can be changed by Mettl in future; therefore specifying IP Addresses is less preferable over specifying domain names.
  2. To use advanced image proctoring (live webcam monitoring) grant firewall permissions to ports 1987 and 1988 for chat.mettl.com i.e.  chat.mettl.com:1987 and chat.mettl.com:1988 should be accessible & ensure that you have latest or updated version of Java installed. Also, make sure that you uninstall any external webcam software (any third party/vendor softwares) from your system prior to starting the test.
  3. Streaming.mettl.com and IP address 54.255.199.30* are only required for the advance proctored tests. Additionally you need to give access to Port 1988 for advance proctored tests.
3 Supported Browsers
We support the following browsers:
  1. Firefox: 40.x and above (recommended latest version)
  2. Google Chrome: 50.x and above (recommended latest version)
  3. Safari: 9.x and above (recommended latest version)
  4. IE: 9.x and above (recommended latest version)

Webcam based test is supported on the following browser versions:

    a. Windows OS
     i)  IE 9 & above (Edge not supported) (recommended latest version)
    ii)  Firefox 40.0 & above (recommended latest version)
 
    b. Linux OS
    i) Firefox 40.0 & above (recommended latest version)

    c. iOS
    i) Firefox 40.0 & above (recommended latest version)


Note: 
a. Please install the latest version of JAVA for your browser before you start an image proctored test and uninstall any existing old version of Java.
b. When running a Proctored test, candidates may choose to disable their browser plugins except Java(TM) during test duration for better test experience
c. For windows environment assessments will work in Windows 7 and above.
 4 Browser Settings 

Mettl tests can be conducted with Pop Blocker enabled and for most commonly used Browser Security Settings.


In Rare case when you click on the Launch Test button, in case Mettl test window doesn't open, it may be due to the pop-up blocker setting of your browser.

Please use the allow once/always option to allow the test window to open.

Optionally, you may disable the pop-up blocker for the duration of the test.

Pop-up Blocker Disabled :

For Mozilla Firefox on Windows: Go to ‘Tools’ --> Select ‘Options’ --> Click ‘Content’ tab and then uncheck ‘Block Pop-up windows’  check box.

For Google Chrome: Go to ‘chrome://settings/’ --> Click on 'Show advanced settings' (at the end of the page) 
--> Under 'Privacy', click on 'Content Settings' --> Under 'Pop-ups', select ‘Allow all sites to show pop-ups’ --> Click on Done

For Internet ExplorerGo to ‘Tools’ --> Select ‘Pop-up Blocker’ --> Click ‘Turn on Pop-up blocker’ --> Select Yes once the 'Pop-up blocker' window appears.

In case the pop-up blocker has been disabled, please turn-on the same after finishing the test
5 Browser Cache Settings

Do clear browser cache/cookies before the 1st round of candidates start taking the assessment. 

For the subsequent rounds of candidates taking the test on the same machines you don’t need to clear the browser cache/cookies.


In case any candidate faces any issue in loading the test or images, first shutdown the system directly using power button and then clear the cache again.


For most browsers pressing “CTRL+SHIFT+DELETE” and selecting Clear Cache (for Firefox and Chrome) or Clear Temporary Internet Files (for Internet Explorer) clears the browser cache.


After doing this restart the browser.

 6 System  Settings 
Mettl recommends candidates to disable security patches, updates of the anti-virus definitions and/or application updates (manually) during the test in order to avoid any interference while taking the test.

Candidates shall disable automatic system updates for the duration of the test. As automatic System Updates may lead to heavy downloads during the test and auto-system re-start will hamper the candidate's experience.

To disable System Auto-updates:
 For Windows, Go to ‘Start’ -> ‘Run’ -> Type‘services.msc’ and then stop ‘Automatic Updates’ service.

In case the Automatic System Updates have been disabled, please turn-on the same after finishing the test

In case you get a prompt that 'Ports 1987 and 1988 have been blocked' or similar, permission needs to be provided to Mettl ports to ensure that a web-cam proctored test may run on the system.

Alternatively, you may disable system's anti-virus/firewall for the duration of the test.
7 Text Expiry/Power Resume
In case the test window closes in the middle of the test or at the time of submission for any reason, the system waits for at-least 20 minutes before expiring the test & generating the result report for that particular candidate. This allows the candidate to re-login & resume the test from exactly where it stopped within those 20 minutes.
8 Support Information
In case of any issue kindly call Mettl support at +91 - 8287 - 803040 or drop an email on support@mettl.com.