# Ansible Tower can't reach SCM source or remote host. **URL:** \ **Category:** Ansible Project\ **Tags:** windows, ubuntu\ **Created:** [February 8, 2018, 8:16pm UTC](https://forum.ansible.com/t/ansible-tower-cant-reach-scm-source-or-remote-host/26689 "2018-02-08T20:16:02Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Pranav\_Baitule](https://avatars.discourse-cdn.com/v4/letter/p/3da27b/32.png) [@Pranav\_Baitule](https://forum.ansible.com/u/Pranav_Baitule)\ **Post date:** [February 8, 2018, 8:16pm UTC](https://forum.ansible.com/t/ansible-tower-cant-reach-scm-source-or-remote-host/26689/1 "2018-02-08T20:16:02Z")
Hello, I have installed Ansible Tower on Ubuntu using Windows Subsystem for Linux. Starting an SCM update or running a playbook against a remote host gives me the following error - ` Can’t create signalfd: Function not implemented Failed to make / slave: Invalid argument ` How can I fix this? ---
**Author:** ![j.r.hawkesworth](https://avatars.discourse-cdn.com/v4/letter/j/a3d4f5/32.png) [@j.r.hawkesworth](https://forum.ansible.com/u/j.r.hawkesworth)\ **Post date:** [February 9, 2018, 11:37am UTC](https://forum.ansible.com/t/ansible-tower-cant-reach-scm-source-or-remote-host/26689/2 "2018-02-09T11:37:52Z")
WSL doesn’t support every function available in the linux kernel unfortunately. There’s a bug report open for signalfd here [https://github.com/Microsoft/WSL/issues/129](https://github.com/Microsoft/WSL/issues/129) If I recall Tower wants a fair bit of RAM etc so you are probably better off spinning up a dedicated VM for it. Hope this helps, Jon ---
**Author:** ![Pranav\_Baitule](https://avatars.discourse-cdn.com/v4/letter/p/3da27b/32.png) [@Pranav\_Baitule](https://forum.ansible.com/u/Pranav_Baitule)\ **Post date:** [February 9, 2018, 7:49pm UTC](https://forum.ansible.com/t/ansible-tower-cant-reach-scm-source-or-remote-host/26689/3 "2018-02-09T19:49:43Z")
Ah. Everything works now with a dedicated VM. Thank you.