@Clive_A That seems logical. Ok I'll ask TrueNas. Surely others must have encountered this before with a TP-link jetstream switch. But no posts to be found. I'l start a new thread. Thank you for you...

@Christophe7983 update: got the LACP working on three out of four ports on the Synology. Forgot to remove LAG from the default LAN. Once it was exclusive to VLAN10 I worked. No succes on the Truenas...

@Clive_A Thanks in advance for your help. For simplicity sake its probablty better to focus on one device (the third). This is a TrueNas Scale server (24.04-RC1) based on an Asrock Rack C2750D4i...

Perhaps someone can point me in the right direction since I'm unable to set up LACP on my SG-3428X. Earlier I had succesfully set up three VLANs beside the default (1). After about a dozen attempt of...