Microsoft' Windows 11 updates have broken the "localhost" functionality, making applications that connect back to 127.0.0.1 ...

Windows 11 KB5066835 is causing the following issues: a bug that blocks lockhost connection, File Explorer preview pane and ...

Microsoft's timing is awkward, as it continues to encourage Windows 10 users to upgrade now that official support has ended.

Microsoft has fixed a known issue breaking HTTP/2 localhost (127.0.0.1) connections and IIS websites after installing recent Windows security updates.

Try removing ~/.ssh/known_hosts. This should make you type in "yes" to save the verification key for every machine name/IP you try to access again, but oh well. You could also just find the line in ...

./iperf3 -c 127.0.0.1 Connecting to host 127.0.0.1, port 5201 [ 4] local 127.0.0.1 port 61107 connected to 127.0.0.1 port 5201 [ ID] Interval Transfer Bandwidth [ 4] 0.00-1.00 sec 6.00 GBytes 51.6 ...