Hi, I'm under the impression that one of my LAN-SSH connections is working poorly. When I SSH from a wired desktop machine (generic) to a Wi-Fi-ed notebook (ThinkPadX220) things take irregular and seemingly excessive amounts of time to happen (you type and the text appears a moment later, etc.). This is just a desktop→cable→router→Wi-Fi→notebook (W)LAN scheme. Issue appears also logging from notebook to desktop. Also I've been having some apparent poor performance in simple web-navigation with that notebook (always through Wi-Fi), so, I'm suspecting: maybe some issue with the firmware-iwlwifi? $ lspci | grep "Network controller" 03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] (rev 34) Both machines run Debian testing (updated). What could I do to check/test the health/performance of the connection in order to diagnose if there's effectively a problem? Thanks a lot!
Try iperf3. Install on both machines and start one as a server and one as a client to see the network speed. Run with the -R option to see the reverse speed. Make sure there is no firewall on the server machine or open the port 5201.