Since yesterday suddenly my Eclipse does not work anymore. The error is “Failed to initialize monitor Thread: Unable to establishe loopback connection”. I googled and tried the following:
- IPv6 completely off, if I ping localhost I get back 127.0.0.1
- Firewall exceptions added for eclipse.exe and adb.exe
- Adb killed and re-started
- Reset Adb from eclipse
- Virus scanners off (temporarily)
Nothing seems to help, I’m lost. Besides, if I try to update I get the error message also:
Some sites could not be found. See the error log for more detail.
Unable to read repository at http://dl-ssl.google.com/android/eclipse/content.xml.
Permission denied: connect
.. I can browse from Eclipse (with the Internal Web Browser perspective), so there is an internet connection. Furthermore, no proxies, just a direct connection.
Solution : turn off Teredo Tunneling Pseudo-Interface.
This probably converts IP4 to IPv6 addresses or something, resulting in an IPv6 address for your localhost (strange though, that a PING still results in IP4). Anyway, turning it off (Device manager > View > Show hidden devices > right click on Teredo > disable) solves the problem!
I found out by doing a ipconfig /all in the NON working situation. It showed :
Tunnel adapter Teredo Tunneling Pseudo-Interface:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fb:####:###:####:####(Preferred)
Link-local IPv6 Address . . . . . : fe80::3c47:###:####:#### (Preferred)
//edit : I guess it’s a workaround untill Eclipse supports IPv6