Server Not Responding

Hi there i have a darkrp server im working on and one day suddenly my friends could’t connect and it would’t show up the list either (Its hosted localy because is a dev) I dose show up for me in my lan list though. I’ve check my port foward and i’ve checked my firewall i just can’t find any thing i’ve googled it for ages please help

It’s pretty much can only be caused by router(port forward) or firewall

I’ve check both of those all though now you said it i do have a firewall on my router i will see if i can sort it out thanks