[Bug 5695] New: Wine and winecfg will not start up with some network configurations

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=5695

Summary: Wine and winecfg will not start up with some network
                    configurations
           Product: Wine
           Version: 0.9.17.
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: wine-net
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Hello,
on my system wine and winecfg will not start up on some configurations of the 
network.
If my eth0 device has a fixed IP, wine and winecfg are starting properly up. 
After running 'sudo dhclient eth0' they will not start any longer. In this 
state ifconfig shows this:
eth0      Protokoll:Ethernet  Hardware Adresse 
          inet Adresse:192.168.1.12  Bcast:192.168.1.255  Maske:255.255.255.0
          inet6 Adresse: fe80::...
 Gültigkeitsbereich:Verbindung
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:11 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:1000
          RX bytes:1954 (1.9 KiB)  TX bytes:1018 (1018.0 b)
          Interrupt:20 Basisadresse:0xe800

After running 'sudo ifconfig lo 127.0.0.1' wine and winecfg are working again 
and ifconfig shows a lo0 interface. Then running a 'sudo ifdown lo' switches 
wine and winecfg back to not working.

For me it looks like wine and winecfg need at least one network interface with 
a fixed IP to work. The problem is that wine and winecfg are not showing ANY 
messages and you have to terminate them with Control+C.

I think it would be good to show a message why they are not working, because I 
needed relatively long to find out why they are sometimes working and 
sometimes not.