I wanted to follow up here because so many of the issues reported in the Licensing and Installation forum end suddenly with a support case being logged on behalf of the user. Our problem was partially resolved by the support case logged here because our network licenses were manually deactivated by support offline (Thanks!). Afterwards, the Trados License Manager was still unable to reach the activation server in order to activate the upgraded licenses. We had to follow the offline activation instructions at Offline activation and deactivation of a Network License for Trados Studio 2021\ Passolo 2022 and later (sdl.com) to manually activate the licenses. Then we had the same issue with another server in a different office/location and had to repeat the offline activation process there. In the end, I can only speculate that something is wrong with the Trados license server on RWS's end until we get a report in this forum that explains the root cause and any possible fix.

 Hi Maia Costa 

Maia Costa said:

the Trados License Manager was still unable to reach the activation server in order to activate the upgraded licenses.

This is strange because AFAIK the Trados License Manager running on a server machine does not need to connect over the Internet to activate or deactivate its licenses. Everything happens locally on the server machine. Problems with deactivation usually show up only when something has been changed in the hardware configuration of the server, e.g. the MAC address of the network card. 
You can check this using the Wechoid Locking utility.

Also, make sure you have the latest version of the "Trados License Server Manager", namely 17.0.648. 
You will need this new version to activate the Studio 2024 network licenses.
You may also check this KB article for more details.

 Hi Maia Costa 

Maia Costa said:

the Trados License Manager was still unable to reach the activation server in order to activate the upgraded licenses.

This is strange because AFAIK the Trados License Manager running on a server machine does not need to connect over the Internet to activate or deactivate its licenses. Everything happens locally on the server machine. Problems with deactivation usually show up only when something has been changed in the hardware configuration of the server, e.g. the MAC address of the network card. 
You can check this using the Wechoid Locking utility.

Also, make sure you have the latest version of the "Trados License Server Manager", namely 17.0.648. 
You will need this new version to activate the Studio 2024 network licenses.
You may also check this KB article for more details.