Hi Matteo, Which version of U-Boot are you using?
Try setting the following environment variables: tftpblocksize=512 tftptimeout=10000 -- Harm -----Original Message----- From: Matteo Guglielmi <matteo.guglie...@dalco.ch> To: u-boot@lists.denx.de <u-boot@lists.denx.de> Subject: tftp time outs Date: Sun, 05 Sep 2021 13:49:46 +0000 Dear All, I've noticed that when u-boot is downloading files from a tftp server (e.g. vmlinuz, initrd etc.) it starts to time out quite heavily "##T #T #T..." if I simply ping the NIC of the raspberry 4b on which it's running. Thanks for any comment or suggestion on this behavior.