Install V1.4.10 help

V1.4.10
I try to install invoiceplane on a Synology, other things works perfect on it.
I used php 5.6 or 7.0 but still get:
page not found
ERR_TOO_MANY_REDIRECTS

index.php:
define(‘IP_URL’, ‘http://nas1/’);

I changed it with the internal ip adress with the same result…

What i’m doing wrong?

I used xammp, works perfect and smooth.
When i transfer my working invoiceplane (http + database) to my synology i get the same error.

Someone?