Webmail email timing out

Is it just the one website that has issues loading, or are there others? If it's a Telus connection issue, I'd normally expect that multiple sites would have a connection error. Are you able to load the main root website for your employer without the 'WorldClient.dll?Session...' part of the URL? If yes, then it's something specific to the webmail.

If no other websites are timing out, one possibility would be whether or not your work web/email server somehow blocked the IP address assigned to your second connection. Using a VPN would be a very quick way to confirm that at the second location, or take the new laptop to the first location.

A less likely issue would be DNS. If the DNS server at the second location is pointing to an outdated server IP address thus the connection timed out error. You could try changing even one of the computers there to use a third party DNS. The easy way is in both Chrome and Edge, go into Settings and search for Secure DNS. If Secure DNS is off, your computer is using the default DNS set on the Telus gateway. If Secure DNS is already enabled, try using a different DNS provider in that list or disable Secure DNS entirely. Re-launch the browser, and try the webmail again.