Can't ssh over wifi [solved]

Help and Support Help
1

Hello,

I can ssh to my Raspi over LAN but not over wifi. While pinging works, ssh connections are refused or never answered.

boris@iti27:~$ ping 192.168.178.32 PING 192.168.178.32 (192.168.178.32) 56(84) bytes of data. 64 bytes from 192.168.178.32: icmp_seq=1 ttl=64 time=5.89 ms 64 bytes from 192.168.178.32: icmp_seq=2 ttl=64 time=5.69 ms 64 bytes from 192.168.178.32: icmp_seq=3 ttl=64 time=5.47 ms

boris@iti27:~$ ssh root@192.168.178.32 root@192.168.178.32's password: Permission denied, please try again. root@192.168.178.32's password:
In this case, the terminal freezes and doesn’t react to Ctrl-C:

boris@iti27:~$ ssh volumio@192.168.178.32
volumio@192.168.178.32's password:

I use the password volumio in both cases.

2

If you have updated to v2.144 via the UI, please reflash your sd card with the latest image.

3

I flashed the card some days ago with 2.041. I’ve ssen that there’s 2.114 now, I’ll try that.

4

Yep, reflashing the card with the latest build cured this for me.

5

Just flashed 2.114. Didn’t help, same problem as before. It freezes or tells me “Permission denied”.

6

I noticed that I can ssh over wifi if and only if the LAN cable is attached.

I also noticed that ifconfig eth0 down doesn’t deactivate eth0. Instead, the connection becomes unresponsive for a few seconds and then eth0 is up again.

7

The solution is to add

IPQoS cs0 cs0

to /etc/ssh/sshd_conf.

8

For the sake of clarity for others reading this post, could you just confirm (or otherwise) that you have a RPi3 and you are using the onboard wifi … from what I have Googled, it would appear to be a RPi3 wifi chipset problem??

https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=138631&hilit=IPQoS+cs0+cs0

9

Yes, I have a RPi 3 and I use the onboard wifi.