I assume you did not set up your BIM Server properly for remote access.
See:
http://www.archicadwiki.com/Teamwork/BimServerRemoteConnection
You must access the BIM Server via a static external IP address, even from work when libs are shared etc, or via a text domain name. The TWLink file will not work remotely if the server has a local IP address, as the text domain name will be ignored in favor of the IP address which will mean nothing at home.
That and other documents are tedious ... but all steps must be followed to successfully use TW remotely over the internet. Only one omission will prevent success.
Cheers,
Karl
One of the forum moderators
AC 28 USA and earlier • macOS Sequoia 15.2, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB