# How can I let PYNQ-Z2 connect PC

**URL:** <https://discuss.pynq.io/t/how-can-i-let-pynq-z2-connect-pc/4360>\
**Category:** Support\
**Created:** [June 15, 2022, 10:44am UTC](https://discuss.pynq.io/t/how-can-i-let-pynq-z2-connect-pc/4360 "2022-06-15T10:44:22Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![s1410832006](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/s1410832006/32/3347_2.png) [@s1410832006](https://discuss.pynq.io/u/s1410832006)\
**Post date:** [June 15, 2022, 10:44am UTC](https://discuss.pynq.io/t/how-can-i-let-pynq-z2-connect-pc/4360/1 "2022-06-15T10:44:22Z")

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I have connected my laptop and board with internet  
then I let laptop ip = 192.168.2.1 and use local search 192.168.2.99  
but it say i can’t connect 192.168.2.99  
and i use ip scanner is can’t to find board ip

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**Author:** ![cathalmccabe](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/cathalmccabe/32/3348_2.png) [@cathalmccabe](https://discuss.pynq.io/u/cathalmccabe)\
**Post date:** [June 15, 2022, 12:45pm UTC](https://discuss.pynq.io/t/how-can-i-let-pynq-z2-connect-pc/4360/2 "2022-06-15T12:45:18Z")

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Can you provide the output of `ip a` on the board, and the same command on a Linux computer, or `ipconfig /all` on a Windows computer?

Can you try ping from the computer to the board, and also from the board to the computer and provide this output too?

Cathal

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**Author:** ![s1410832006](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/s1410832006/32/3347_2.png) [@s1410832006](https://discuss.pynq.io/u/s1410832006)\
**Post date:** [June 15, 2022, 2:27pm UTC](https://discuss.pynq.io/t/how-can-i-let-pynq-z2-connect-pc/4360/3 "2022-06-15T14:27:12Z")

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i’m try it, ipconfig /all can see my laplot ipv4:192.168.2.1 and then try to ping the board on cmd  
but it’s not find it

 ![5](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/2X/e/ed80c1f2833374bfb07acf940b70657fcb7635ef.jpeg)

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**Author:** ![cathalmccabe](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/cathalmccabe/32/3348_2.png) [@cathalmccabe](https://discuss.pynq.io/u/cathalmccabe)\
**Post date:** [June 15, 2022, 2:50pm UTC](https://discuss.pynq.io/t/how-can-i-let-pynq-z2-connect-pc/4360/4 "2022-06-15T14:50:56Z")

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Can you run the following on the board:

`ip a`

Is the ping output showing you “packets”:  
**Sent 4, received 1 and lost 3**?  
Can you try run ping several times?

Can you check you see LEDs on the Ethernet port of the board? (Yellow/orange). If you don’t, you may want to try another cable.

Cathal

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<div class="post-metadata">

**Author:** ![s1410832006](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/s1410832006/32/3347_2.png) [@s1410832006](https://discuss.pynq.io/u/s1410832006)\
**Post date:** [June 16, 2022, 12:16am UTC](https://discuss.pynq.io/t/how-can-i-let-pynq-z2-connect-pc/4360/5 "2022-06-16T00:16:20Z")

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it’s also can’t to ping th board  
the Leds orange sometimes orange green cross  
I feel I have to try another cable , later , I will to try again

 ![3](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/2X/d/de90ed0104c6fdcafb32b14a5801f4fd3dce7e24.jpeg)

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**Author:** ![dexu4](https://avatars.discourse-cdn.com/v4/letter/d/7bcc69/32.png) [@dexu4](https://discuss.pynq.io/u/dexu4)\
**Post date:** [June 16, 2022, 3:48pm UTC](https://discuss.pynq.io/t/how-can-i-let-pynq-z2-connect-pc/4360/6 "2022-06-16T15:48:12Z")

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Hey I think I have simillar issue and did not find solution so far but I leave here link to my topic so maybe one of the comments there will be helpful for you.

[https://discuss.pynq.io/t/computer-can-not-see-ethernet-connection-with-board-pynq-z2/4173/2](https://discuss.pynq.io/t/computer-can-not-see-ethernet-connection-with-board-pynq-z2/4173/2)

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<div class="post-metadata">

**Author:** ![s1410832006](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/s1410832006/32/3347_2.png) [@s1410832006](https://discuss.pynq.io/u/s1410832006)\
**Post date:** [June 18, 2022, 1:42am UTC](https://discuss.pynq.io/t/how-can-i-let-pynq-z2-connect-pc/4360/7 "2022-06-18T01:42:03Z")

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thanks, I will try this,and I will try use rounter and new cable to connect the board again on this weekend.

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**Author:** ![dexu4](https://avatars.discourse-cdn.com/v4/letter/d/7bcc69/32.png) [@dexu4](https://discuss.pynq.io/u/dexu4)\
**Post date:** [June 18, 2022, 4:57pm UTC](https://discuss.pynq.io/t/how-can-i-let-pynq-z2-connect-pc/4360/8 "2022-06-18T16:57:42Z")

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Hey my problem is solved try to follow these instructions:

1. I followed instructions under these two links:  
[https://answers.microsoft.com/en-us/windows/forum/all/unable-to-see-pcs-on-my-workgroup-network-id/896aac05-3df9-40f8-9a4b-5869d39d4418](https://answers.microsoft.com/en-us/windows/forum/all/unable-to-see-pcs-on-my-workgroup-network-id/896aac05-3df9-40f8-9a4b-5869d39d4418)  
[http://woshub.com/network-computers-not-showing-windows-10/](http://woshub.com/network-computers-not-showing-windows-10/)  
2 Restart my computer  
3 Disable all in my computer Wifi, bluetooth, VPN (just not ethernet ofcourse)  
4 Run PYNQ-Z2 board  
5 Connect computer with board via ethernet (I think it is important to first start up the board and let to flash all LEDs and after that plug ethernet cable)

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**Author:** ![briansune](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/briansune/32/3087_2.png) [@briansune](https://discuss.pynq.io/u/briansune)\
**Post date:** [June 18, 2022, 8:24pm UTC](https://discuss.pynq.io/t/how-can-i-let-pynq-z2-connect-pc/4360/9 "2022-06-18T20:24:17Z")

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> I will use both language on this reply:

> 你試用串口連接ZYNQ板，串口設115200，IFCONFIG 一次看有否ETH0 和ETH0(XXX)。一般來說，ZYNQ是設了192.168.2.99，但這不代表他就一定要用2.XXX的網區。他也會自動設立一個1.XXX的網區如果你是有ROUTER的情況下。

> Please try to connect the ZYNQ with the usb and open serial monitor and set the BR to 115200 and ifconfig the board status. In general eth0 is default set to 192.168.2.99 but this doesnt mean the board cannot auto assign one by itself as there are eth0(xxx) is create automatically when your board is connected to other subnet (of cause this is assumed there is a router in the setup).
