Unable to connect to EV3 via WiFi

I am running firmware version 1.09E on my EV3 and I can ping it from my laptop and from Matlab using !ping. But Simulink won't connect to it. Please help!

Output below:

>> !ping 10.1.1.16
PING 10.1.1.16 (10.1.1.16) 56(84) bytes of data.
64 bytes from 10.1.1.16: icmp_seq=1 ttl=64 time=3.32 ms
64 bytes from 10.1.1.16: icmp_seq=2 ttl=64 time=2.89 ms
64 bytes from 10.1.1.16: icmp_seq=3 ttl=64 time=2.89 ms
^C

--- 10.1.1.16 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 2.891/3.035/3.320/0.201 ms

Operation terminated by user during unix (line 32)

>> myev3 = legoev3('wifi','10.1.1.16','00165351fa52')
Error using legoev3 (line 287)
Failed to connect to '10.1.1.16'. Please check your network settings.

[Walter Roberson]

Is it possible that the ev3's ID is something different? Is it possible that the connection is not wifi ? After you do the ping, what shows up if you then

 !arp -a

in particular does 00:16:53:51:fa:52 show up and if so against which interface name?

Answer 1

[Suze Zhang]

Hi Krish,

In the firmware version V1.09, the SSH and telnet are blocked by Lego. The interface Simulink uses to connect to the brick relies on these two types of connections. A workaround is to use an older firmware version, for example, V1.03.

For more information, please refer to the link below to a MATLAB Answers post:

https://www.mathworks.com/matlabcentral/answers/268180-why-do-i-get-an-failed-to-connect-error-when-trying-to-connect-my-lego-mindstorms-ev3-robot-with-s