New
#1
Open ports on router suddenly closed
Hello,
I have a Windows 10 machine with D-link DSL-225 router.
I've opened a few port in the router's interface and it worked for more than a year. Lately I noticed that the ports I opened are now closed and I can't figure out why.
When I check them with Advanced Port Scanner program, and I use the laptop's local ip they show as open. When I type the external ip they are closed.
Any ideas?
I've tried so many things by now that I'm 100% lost.
p.s. I even called the ISP to ask if they close the port but apparently not.
p.s.2. When I scan the external ip, it only shows 1 open port when I scan "All TCP ports 1-65535".