Let's Go Learn Knowledge Base
Advanced network and computer lab troubleshooting page for IT professional use

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.  Please note, even if your network has a high capacity, content filters do not!  They often cannot keep up with hundreds of students clicking answers every 3 to 5 sections.  This rate will overwhelm content filters where as during initial pilots all may have gone well.

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.


Other Recommendations

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.



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When you bring additional fields into a conversion, Quickbase often finds inconsistencies. For example, say you're converting your Companies column into its own table. One company, Acme Corporation, has offices in New York, Dallas and Portland. So, when you add the City column to the conversion, Quickbase finds three different locations for Acme. A single value in the column you're converting can only match one value in any additional field. Quickbase needs you to clean up the extra cities before it can create your new table. To do so, you have one of two choices:

  • If you want to create three separate Acme records (Acme-New York, Acme-Dallas and Acme-Portland) click the Conform link at the top of the column.
  • If the dissimilar entries are mistakes (say Acme only has one office in New York and the other locations are data-entry errors) go back into your table and correct the inconsistencies—in this case, changing all locations to New York. Then try the conversion again.

Read more about converting a column into a table.

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