J'utilise une version alternative du firmware : Asuswrt-Merlin 384.17 (26-Apr-2020) https://www.asuswrt-merlin.net/
Les fonctionnalités indiquent : Updated Samba version (3.6), with SMB2.0 support
384.4 (16-Mar-2018)
Samba protocol support can now be set to
SMBv1, SMBv2, or SMBv1 + SMBv2 (the new default).
This will result in a performance drop on all models but the RT-AC86U, but will be more secure.
Ideally, people should change it to SMBv2 only, and then reboot all their client devices to start using only the new protocol.

Hello, unfortunately I don't have the answer to this question. There is certainly information on the Internet. In any case, in the settings of the modem, it simply proposes to activate the SAMBA protocol, without specifying the version. I deduce that there is only version 1... But this may be wrong.