routerconfigs ERROR: Unknown host

[Axel90]

Hey all!

I have cacti version 0.8.8f on Ubuntu 16.04 and routerconfigs 0.3

I'm using tftpd-hpa as a tftp server.

I wasn't able to add devices at the beginning, but I solved that by manually creating the mysql tables.

So now I have two cisco ios switches as devices.

When I manually execute the router-download.php in /usr/share/cacti/site/plugins/routerconfigs/
I always get ERROR: Unknown host

I added a device with the Cisco type and the authentication account (picture1)
When I click again on the device, the settings are discarded. (picture2)

I don't know if that's a problem or if that's normal.

Did anyone get routerconfigs working with 0.8.8f?

Can anyone help me?

Thanks in advance!