As per screenshot below, I have been unable to proceed with the CyanogenMod Installer (Windows). This is what I get:

Having internet troubles? Please check your network connection.

Screenshot (click image for large variant)

I've tried adding extra inbound and outbound exceptions for Cyanogen Mod Installer (%USERPROFILE%\AppData\Local\Temp\CMInstaller.exe) in the Windows Firewall (accessible from Control Panel), but it didn't help. I am not behind a proxy. And there's nothing wrong with my Internet connection : I'm accessing all other online content.

I'm using Win8x64, and trying to install CM on my Samsung S3 GT-i9300.

Has anyone encountered the same issue?

*UPDATE: I tried running the msi installer via an admin command prompt, didn't make any difference.

  • I've had issues with network connections on Android using CM ROMs & often for me it's the clock being to far off from what the rest of the world agrees on. While I've not used Windows mobile since the T-mobile Wing and my CM issues where on Android it's worth checking the clock as this will cause networking issues no matter the device if off set to far.
    – S0AndS0
    Commented Nov 6, 2016 at 23:06
  • its lineage OS time cyanogen is no more
    – xeon zolt
    Commented Feb 11, 2017 at 15:05
  • @xeonzolt many people (including myself) are using CyanogenMod but their device is not supported by Lineage)
    – Ethan Z
    Commented Feb 14, 2017 at 17:23

2 Answers 2


Because this question is in the active category, I'll give an updated answer.

CyanogenMod was discontinued on December 27th, 2016. Because of this, their webserver also went down, which would cause the issue this question asked. There is no solution, and the installer is forever broken. You can manually install the ROM or use a different custom ROM.


Download the CMInstaller.msi Extract the CMIntaller.msi with 7zip Rename the setup to setup.exe Right Click on the setup.exe -> Run as Administrator

And it's running without a problem.

I'm on Windows 8.1 x64

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .