Help with J Gecko U

Cxddles · Feb 6, 2023

I believe I followed the setup-guide correctly and had every file I needed on my SD Card and laptop. My laptop and Wii U were connected to the same WiFi and yet when I type my Wii U's IP address in the tab Wii U IP Address and click connect I get the following error messages. Any help on fixing this is highly appreciated and will make sure I won't make the same mistake again in the future.

The one on my laptop
java.net.SocketException: Connection reset by peer: socket write error
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(Unknown Source)
at java.net.SocketOutputStream.write(Unknown Source)
at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
at java.io.BufferedOutputStream.flush(Unknown Source)
at java.io.DataOutputStream.flush(Unknown Source)
at tW.m(eqa:313)
at tW.J(eqa:800)
at TD.Ta(nd:8239)
at TD.K(nd:219)
at ID.d(nd:7097)
at ID.doInBackground(nd:5317)
at javax.swing.SwingWorker$1.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at javax.swing.SwingWorker.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
The one on my Wii U

Hayato213 · Feb 6, 2023

Check your firewall

JGecko U does not connect successfully despite following all steps correctly:
Usually, your (Windows) Firewall will ask you for permission to allow java.exe to access the network the first time you're trying to use the network with a Java application like JGecko U. Obviously, you need to give this permission (and specify you're inside a private network). Note: If no such pop-up comes up, you may need to manually add a firewall rule to allow java.exe to access the network. This is something that prevented some users from connecting JGecko U successfully. After adding the firewall rule, the connection should work fine.

Cxddles · Feb 6, 2023

Hayato213 said:
Check your firewall

JGecko U does not connect successfully despite following all steps correctly:
Usually, your (Windows) Firewall will ask you for permission to allow java.exe to access the network the first time you're trying to use the network with a Java application like JGecko U. Obviously, you need to give this permission (and specify you're inside a private network). Note: If no such pop-up comes up, you may need to manually add a firewall rule to allow java.exe to access the network. This is something that prevented some users from connecting JGecko U successfully. After adding the firewall rule, the connection should work fine.

Thanks for the quick response! About this; I have to check for Java (TM) Platform SE binary, right?
Do I have to checkmark all to private or public or both?

Hayato213 · Feb 6, 2023

Cxddles said:
Thanks for the quick response! About this; I have to check for Java (TM) Platform SE binary, right?
Do I have to checkmark all to private or public or both? View attachment 351589

Check your firewall setting to see if the firewall is blocking inbound/outbound traffic.

Cxddles · Feb 6, 2023

Hayato213 said:
Check your firewall setting to see if the firewall is blocking inbound/outbound traffic.

View attachment 351609

Where can I find this?

Hayato213 · Feb 6, 2023

Cxddles said:
Where can I find this?View attachment 351624

Advance settings tab -> Inbound traffic

Cxddles · Feb 6, 2023

Hayato213 said:
Advance settings tab -> Inbound traffic

So I allowed all of those, but I still get the same error message.

I also enabled all of those (private and public). What am I doing wrong?

Help with J Gecko U

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