Windows 10: 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".

:)

 

ports on router for gaming

I went into my router before for simple things like adding WEP keys and all that. but when it comes to ports i'm kinda confused, i have a linksys router and i also have a game that uses these ports: TCP: 18210, 18215, 13505.
UDP: (outgoing) 18215, 20000-22000; (incoming) 3658
also notes "port 1042 needs to be opened instead of 1000"

with forwarding and triggering etc. listed in the router i dont know what i actually need to do to "open" these ports, any help?

 

How to factory reset Cisco 1700 Router

Hopefully I can help you here....its a very common thing to happen.


First, I take it you dont know the passwords for console access or telnet/ssh?

I will assume that these devices belong to you.

step 1. Plug a cisco console cable into a serial port on your pc
step 2. Plug other end into Cisco console port
step 3. Using hyperterm or putty or similar connect to the serial port
step 4. boot router, and make sure you clearly can see the output (this confirms you have good serial comms)
step 5. if this fails, adjust the comm port settings (9600, 8,1,n are the default)
step 6. now you have to do the only hard part...send the break command:

Break command list: Break Commands

Go down the list and match your OS and SW and try the sequence suggested.

If this fails several times do what I do: Install putty (free) and then to send a break so you can get into rommom just hit "ctrl-a b".

 

Opening/ forwarding ports without accessing router settings

Yes, in order to open close ports in XP you still need to access the router. You need to either reset it or get the password. No other way around it.