BUY a router?
PS: Before i could host, now nobody can because of this "no ping" bullstuff.
Try to remove any port forward attempts, after that got to your router setting and enable UPnP if nothing else works after trying this again look on the back of your router and check if you see a pinhole or button that says reset, hold it for 5 seconds or 10 and all your routers default setting will be re-set, after retry the UPnP, if you can't try disabling UPnP in your Blockland options and try port forwarding again.
It will help if you tell me your internet provider and router model.