Is Win7 blocking UDP traffic on 127.0.0.1?

[mariovde]

Hi,

We are building an 2 application that connect to 127.0.0.1:30303.
They are used to send data from app A to app B, acting as a local p2p connection.

On windows XP, everything runs as it should. On windows 7 it doesn't work anymore.
We've tried turning off the firewalls, opening ports etc but we cannot get this connection to work on win7.

Anyone got an idea of what changed in Win7 regarding tcp/udp or socket changes?

Thanks guys!

Mario

 

[NoN]

Hi,

We are building an 2 application that connect to 127.0.0.1:30303.
They are used to send data from app A to app B, acting as a local p2p connection.

On windows XP, everything runs as it should. On windows 7 it doesn't work anymore.
We've tried turning off the firewalls, opening ports etc but we cannot get this connection to work on win7.

Anyone got an idea of what changed in Win7 regarding tcp/udp or socket changes?

Thanks guys!

Mario

Welcome to SevenForums,

Maybe try to edit the hosts file in windows 7 with Notepad...

You can find a tip: Here

 

[mariovde]

Thank you for the reply NoN, but we've look in the hosts file already.
it says 127.0.0.1 localhost.
So we think this is okay, because XP has the same hosts-file.

 

[NoN]

Thank you for the reply NoN, but we've look in the hosts file already.
it says 127.0.0.1 localhost.
So we think this is okay, because XP has the same hosts-file.

Perhaps some infos that might help:
http://www.sevenforums.com/tutorials/78266-hosts-file-use-windows-7-vista.html?filter[2]=Networking Internet

 

[mariovde]

No, that didn't work either...

 

[zigzag3143]

Hi,

We are building an 2 application that connect to 127.0.0.1:30303.
They are used to send data from app A to app B, acting as a local p2p connection.

On windows XP, everything runs as it should. On windows 7 it doesn't work anymore.
We've tried turning off the firewalls, opening ports etc but we cannot get this connection to work on win7.

Anyone got an idea of what changed in Win7 regarding tcp/udp or socket changes?

Thanks guys!

Mario

Some firewalls can block the ports/prot. even when disabled. You may need to un-install it to find out.