The default Thunderbolt 3 Dock (PA5281E*) Intel LAN driver does not support DMAr (DMA remapping).
When using the Thunderbolt 3 Dock along with Modern Standby models such as Portege X30-F, X30-G, X40-G, X50-G or Tecra X40-F, X40-G, X50-F, X50-G ( Secure Core PC classified models ), due to the missing DMAr support, you may experience one of the following issues:
Please visit our download page to obtain the Thunderbolt 3 Dock (PA5281E*) Intel LAN driver V184.108.40.206 (i210) or later, which support DMAr (DMA remapping).
More information about Thunderbolt 3 Dock:
More information about Kernel DMA Protection for Thunderbolt:
Dynabook provides this information "as is" without warranty of any kind, either express or implied, including, but not limited to, the implied warranties of merchantability or fitness for a particular purpose. Dynabook shall not be responsible for the topicality, correctness, completeness or quality of the information or software provided. Dynabook is not liable for any damage caused by the use of any information or software provided, including information that is incomplete or incorrect. Any trademarks used herein belong to their respective owners.
Copyright Dynabook Europe GmbH. All rights reserved.