Better use VPS. Home router might be to weak to provide stable, reliable connection during sync and, what worse, validation. You can try free 2 month trial on digital ocean, 1 month free on Vultr - 3 months of free mining (link is realRioda signature). After that 10.52 Euro for 3 months (3,5 euro per month) is enough to pay for server that is good enough to mine - MVPS.
After you rent a VPS in the 6th month, maybe the cost can't be covered again by relying on mining results. Validation participants increase each period, causing the prize to decrease.
Just imagine the network grows to 25000 validated participants, meaning that 1 day there will only be 1 IDNA for 1 person if all nodes activate mining. The price of VPS at DigitalOcean is $10, so at least the mining results every month must be above $10
There is no other choice but to increase the IDNA price so that the VPS rental fee can be covered and we can be constantly on the IDNA network.