We use Allplan 2021 workgroup in our office and since our Administrator edited the LAN settings (IP addresses and such) we cannot access eachother's projects. However we see each other's shared folders and are able to read/write them. We also see the projects from one another's computer, but unable to access them (marked red on Project Choosing table). We are also unable to create new projects on other than our own computer. We are not sure what other changes have been made by the administrator, but he cannot solve this.

FYI we are able to ping each other's computers, and they have no problem communicating. Feels like an allplan restriction but everyone is set as an administrator in the workgroup.