Advanced network and computer lab troubleshooting page for IT professional use
Web Filter/Proxy Test
Please add the following URLs/IPs to your proxy/web filter whitelist and then confirm that the following sites are available by visiting them behind the filter:
Main whitelist (if your filter allows, please approve all sub-domains of letsgolearn.com):
* Please note that some web filters require you to add both http and https for each url to the whitelist. Additionally, some web filters require that you define both www and non-www urls on the whitelist.
If there are heavily congested times on the network, e.g. first thing in morning or at lunchtime, plan testing times during off peak hours. Ensure that there is not any sub-optimal lab network hardware in use, mainly lab hubs/switches and in some cases old nics. If ISP bandwidth is an issue, consider increasing your ISP speed package.
If you have exhausted troubleshooting ideas and are still experiencing issues, it is recommended that you try connecting to Let's Go Learn from a computer on your LAN that bypasses your web filter or proxy. Test the connection closest to your gateway with the least amount of software/network devices in between. In the vast majority of our troubleshooting cases that could not be resolved easily, the issues were within the LAN due either to hardware or software causing the restrictions.