Knowledgebase : Network

Our Network SLA is 99.9% network availability and connection to your servers. Yes, there will be re-imbursement for network unavailability based on our Network SLA page here:

You may use the following information to test the latency and connectivity to and from our network.

ISP Organisation: APC Hosting Pte Ltd


Looking Glass:

Speed Test:

Test IP (Singapore):

Telnet is generally used for checking connectivity from your location to your APC’s server destination ports.  For example to check if the network you are using allows you to connect to a certain port at your server.

How to perform a telnet test from your location:

(Windows PC)
- Click “Start menu” go to “Run” 
- In the “Run” box, type “CMD” 
- With the command prompt open type: telnet <your APC server ip address> <port number>

- Example telnet 53

- If you encountered the following output: 

'telnet' is not recognized as an internal or external command,
operable program or batch file.

It means that telnet is not installed. 

If you are using Windows 10, you can follow this url on how to enable the telnet function through the graphical user interface. 

Once telnet is enabled, run the command again. 

- If successful.

- If not successful you will see error "Connecting To <your APC server ip address>...Could not open connection to the host, on port <your port number>: Connect failed

- There are a number of reasons for the failure and we advice contacting us at including providing screenshots of your telnet results above for APC to advice further.

If you encounter network issue such as slowness or non responsive when attempt to connect to your APC service, you will need to provide us the ping, trace route and your IP address.

Ping is a basic Internet program that allows a user to verify that a particular IP address exists and can accept requests.

Traceroute is a command which can show you the path the information takes from your computer to one you specify. It will list all the router it passes through until it reaches its destination, or fails to and is discarded. In addition it will tell you how long each 'hop' from router to router takes.

If you are not sure on how to do ping or traceroute, please use the guide below:

This guide assume you are using Windows.

For source IP, please visit from the location (such as office, home) you encountering the issue and you will see your IP shown on the site.

For APC server IP, please use the url which you are facing problem connecting to. Or check with APC support team ( what is your APC server IP address.

Click on the start menu > at the text box type "cmd" (without quotes) it will list "Command prompt" so select it.

A black box with some words will appear. Type "ping" (without quotes and replace with the IP or domain you intend to ping).

For trace route, it is also done inside command prompt but type "tracert" (without quotes and replace with your own).

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