Pynq-z2 cannot connect to internet through USB wifi

Support
1

Hi, I am trying to connect my pynq z2 board to internet using USB wifi dongle (D-link DWA-31).
I tried using the wifi notebook already presented on pynq.

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By using the terminal , I got the below result
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By using python and trying the same commands as in notebook:

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Please Help…

2

What type of WiFi network are you connecting to? It looks like you aren’t connecting or getting a DHCP address. This isn’t really a PYNQ issue. You may be better searching/posting on Linux forums.

For info, if you ut your SD card into your PC and open it you will see a boot.py file.
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You can uncomment the appropriate lines and add SSID and password:
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Cathal

1 Like
3

I am connecting to my phone’s hotspot. Also, not able to connect to any other wifi.
Is it possible that this D-link wifi dongle is not supported (As discussed here: RALink WiFi dongle with PYNQ/pynq/notebooks/common/wifi.ipynb - #10 by jbattat)

I tried that but pynq didnot completely boot then (I think it got stuck while connecting to the wifi).

Searched everywhere but no luck…

4

Can you share the output of?
ip addr

5

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 06:a1:9e:1c:5e:37 brd ff:ff:ff:ff:ff:ff
3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:05:6b:01:bf:f6 brd ff:ff:ff:ff:ff:ff
inet 192.168.2.99/24 brd 192.168.2.255 scope global eth0:1
valid_lft forever preferred_lft forever
inet6 fe80::205:6bff:fe01:bff6/64 scope link
valid_lft forever preferred_lft forever
4: sit0@NONE: mtu 1480 qdisc noop state DOWN group default qlen 1000
link/sit 0.0.0.0 brd 0.0.0.0
6: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 54:2a:a2:92:a3:15 brd ff:ff:ff:ff:ff:ff

6

OK, I think that means the WiFi device is recognised, so I think this is a Linux issue. Did you try search for anything related to this?
wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000

I don’t think you stated which version of PYNQ you are using. If you are using v2.6 it may be OK, but I would suggest you try the latest PYNQ image (v2.7 released recently).

Cathal