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Community Support => General Support => Topic started by: dk2gz on January 09, 2018, 09:24:09 am

Title: Ports always closed by WLAN(Server)
Post by: dk2gz on January 09, 2018, 09:24:09 am
He cannot get the Radio connected, even in my own network.
The server is connected via WLAN to the network. Radio is published on remotehams.
If I run the server on dem desktop via LAN I have access in the own network.

73 de Harry, DK2GZ
Title: Re: Ports always closed by WLAN(Server)
Post by: w8rj on January 09, 2018, 10:32:40 am
Read this post.

http://www.remotehams.com/forums/index.php/topic,1681.0.html
Title: Re: Ports always closed by WLAN(Server)
Post by: dk2gz on January 09, 2018, 10:33:00 pm
Hello again,

I have to radios: Radio 1(K3) connected via LAN can open the ports, Radio 2(FT-991) on the laptop connected via WLAN cannot open the ports. There a server installed on the desktop for Radio 1 and a second server on the laptop for Radio 2. There is only one server running at the same time. I cannot get the ports open for Radio 2 using the same router.

73 de Harry
Title: Re: Ports always closed by WLAN(Server)
Post by: w8rj on January 10, 2018, 03:44:33 am
Did you change the port numbers on the second server? Ports can only be forwarded to one computer at a time. Don't worry about port 843.

Read this post.
http://www.remotehams.com/forums/index.php/topic,1840.0.html
Title: Re: Ports always closed by WLAN(Server)
Post by: dk2gz on January 10, 2018, 10:14:07 am
Hello

I did change the ports to 4527 and 4526 and use dummy(the real radio is in the garage, hi) as the radio brand.
Now the server can open the ports with the second PC in the home network. Thanks.

But how to setup the server when I use my  mobile phone for the internet connection. Because this notebook will act on the remote site as server.

73 de Harry, DK2GZ
Title: Re: Ports always closed by WLAN(Server)
Post by: m3ghe on January 10, 2018, 11:28:44 am
Harry you can run both servers on the same computer, you don't need to use to different ones. Just install a second copy of RCForb server to a different  location than the first. This then simplifies your port forward requirements especially if using your mobile as the Internet tether.
Title: Re: Ports always closed by WLAN(Server)
Post by: w8rj on January 10, 2018, 11:31:51 am
When using a Cell phone or one of those Cell Hotspots for the internet connection won't work, because you can't forward ports on those systems. Some carriers offer their Hotspots with a static IP (sometimes for a lot more money), that allows you to port forward.

I've never heard of a static IP offered on a smartphone. But maybe there are carriers out there that do.
Title: Re: Ports always closed by WLAN(Server)
Post by: dk2gz on January 10, 2018, 02:15:33 pm
o.k.

I guess, you need further details about my question(s) and configuration.

I have a contest QTH, where is only internet access by a surf stick, mobile phone with hotspot function, mobile router, what ever you will name it.

There I will set up a netbook connected direct via the surf stick, or even possible, via a  G2/3, UTMS LTE mobil GSM router to the internet.  If I must use the mobile router(I am not sure if I need this router to get the port forwarding running) the router is connected to the netbook.  The server will be installed on this netbook on the remote site with an FT-991. 

Without using remotehams I can use internet via the surf-stick, or the mobile router without any problemes, but cannot open the ports to connect the FT-991 at home. I am aware of possible latence problems on the remote site, but that is the only way to get internet access there.

At home there will be only running clients, on different machines, to connect the remote site via LAN,WLAN etc..

73 de Harry, DK2GZ


Title: Re: Ports always closed by WLAN(Server)
Post by: w8rj on January 10, 2018, 02:40:06 pm
I understood your setup. Typically those types of internet connections block incoming port traffic and can't be opened and forwarded.

Your only solution might be is to run a VPN into the server computer, using something like Hamachi.

http://www.remotehams.com/forums/index.php/topic,2189.msg9589.html#msg9589
Title: Re: Ports always closed by WLAN(Server)
Post by: dk2gz on January 11, 2018, 11:57:51 am
o.k.

I finaly stop further investigation. I do not have any idea about VPN(Hamachi) to set up such a solution. Remote operation of the contest QTH is canceled. :

Thanks again for your help, but I guess remotehams is not a solution for me.

73 de Harry, DK2GZ
Title: Re: Ports always closed by WLAN(Server)
Post by: w8rj on January 11, 2018, 12:50:55 pm
Running any type of "server" software that accepts connections from outside your LAN will have the same problem, unless the software vendor offers some kind of proxy service.
Title: Re: Ports always closed by WLAN(Server)
Post by: dk2gz on January 18, 2018, 11:57:20 am
hopeless

Now again I cannot start the server and open the ports on the second pc in the own WLAN. The ports alway open on the second pc direkt connected to the lan by cable. But the pc connected via wlan cannot open the ports.

I changed the ports for the radio and audio on the wlan server to 4526/27 and back again to 4524/25 etc.

Why is it so difficult, even in the own network, to get these ports running.

73 de Harry
Title: Re: Ports always closed by WLAN(Server)
Post by: w8rj on January 18, 2018, 12:32:32 pm
You can only forward a port to one local IP in the LAN. If you use a different computer with a different local IP, or the same computer but different local IP, the port forwarding rule is broken and needs to be updated in the router.

If you're connecting inside your LAN read this post
http://www.remotehams.com/forums/index.php/topic,1681.0.html
Title: Re: Ports always closed by WLAN(Server)
Post by: dk2gz on January 18, 2018, 02:19:41 pm

how to update the rule in the router if is broken. The other post does not really help. I already had read it in the past over and over again.

73 de Harry
Title: Re: Ports always closed by WLAN(Server)
Post by: w8rj on January 18, 2018, 03:11:06 pm
First close all server instances on all the computers.

Power down your router and power it back up.

Go into the router setup, and set up your port forwarding rules.

If your router allows it, set up a DHCP reservation for the computer the server is going to be on. This will make sure the local IP of the computer is always the same.

Start the server and the ports should be open.

If not, leave the server running and double check the port forwarding rules in the routerm and edit them as required.

If you're going to be switching around diffrent computers and servers, you need to understand the basics of port forwarding. There's a lot of information on the web.


Title: Re: Ports always closed by WLAN(Server)
Post by: w8rj on January 19, 2018, 08:38:40 am
I re-read the earlier posts and when you refer to "WLAN", if you're talking about a  surf stick, mobile phone with hotspot function, mobile router, etc, those Internet connections will not forward port traffic and you can't run a server application behind that connection..

The only way to run the server on that type of connection is a VPN (Hamachi) that I mentioned earlier.