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One Computer Finds the Other, but The Other Computer Doesn't Find the First

Added by Siamak Ensafi over 4 years ago

Hello, I have this weird problem with D-LAN. I have set up both computers. One is a desktop and the other a laptop. Both are set to IPv6 (I have also tried IPv4 on both earlier).

However, Desktop detects and lists my laptop as a peer. and laptop fails to detect. I can send messages from laptop to desktop and they can be seen on desktop, but not vice versa.

Please help me figure out what is causing this?

By the way, thanks for the free program. Much appreciated.


Replies (2)

RE: One Computer Finds the Other, but The Other Computer Doesn't Find the First - Added by RomLAN RomLAN about 3 years ago

Hi Siamak Ensafi , I've just found the solution of the problem.
I tried LanShark : and it also had the same "bug".
But when I tried the _ "Open web GUI"_ feature of LanShark, I noticed that the PC having only one entry had an IP like "169.xxx.xxx.xxx". It's a default IP that is set when IP auto-addressing fails.
By doing an ipconfig /all I also notices that VIRTUALBOX had addressed the exact same IP.

*--- SOLUTION TO D-LAN ASYMETRY ISSUE ----- *
  1. Go in the "Network sharing center" (I won't explain how to).
  2. Click on "Modify the settings of the card" (I'm french so I'm translating)
  3. Right-click on the VirtualBox virtual card and disable it.
  4. Do the same for programs like Kaspersky antivirus, they may replace Virtualbox as a primary NIC access.

I guess that the definition of what is prefered by Windows is conflicting with programs like D-LAN. The funny thing is nobody seems to have ever noticed it because until programs can display the address they really use (like LanShark), you cannot even have a clue of what NIC is used .
An other funny thing is : I've recently been into NDI plugin for OBS Studio and faced the issue of the plugin choosing one of my two NIC card without me being able to direct him to the good one (the one used to link the PC with the other). Seems like a "deja vu" in the matrix ;)

RE: One Computer Finds the Other, but The Other Computer Doesn't Find the First - Added by RomLAN RomLAN about 3 years ago

I forgot to say : wether you define a special NIC in D-LAN, the program will use the Virtualbox card instead without telling you. That's the essence of the problem.

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