I am unable to connect to a static IP address

[jonchaves]

Hi guys,

I have a Cisco RV52 router which has a DMZ port that has been setup with the 10.5.60.1 gateway.

I set the ethernet adapter on the computer with the required parameters
10.5.60.11
255.255.255.192
10.5.60.1

When I connect the cable from the DMZ port to the computer adapter it shows there is a connection, I am able to ping the gateway, but when i try to put the \\10.5.60.1\ in the File Explorer, it says there is no connection. When I click on Diagnose, after it completes, it says "The remote device or resource won't accept the connection"

I have verified all the ports and verified that the DMZ is enabled in the router and even when I spoke with the tech support they said they could connect from their side. I do not understand why I am unable to connect.

 

[bill001g]

If you can ping the IP address you have network connectivity. There must be a configuration issue related to the dmz. You must have a typo because I can't find a "52" model. In general these are small business routers that need real firewall and DMZ functions.

In general good practice says you only want to configure the router from the LAN. I would suspect there is a default rules that says you can not manage the router from the DMZ. Most routers also do not allow you to mange the device from the WAN. There likely is a way to change it but I have not used one of these routers in many years.

Unless there is no other option I would use a PC connected to LAN to do management. DMZ is designed to protect both your LAN and your router if someone were to compromise the a machine in the dmz.



The device you have is very different in what it calls a DMZ than a consumer router. A consumer router makes no effort to protect the LAN from the DMZ devices.

 

[jonchaves]

Hi Bill,
It is actually an RV042 so that was my mistake.

This is actually a gas station router from a Gilbarco Passport system that the company is using. They have the POS System hooked into Port #1 and the DMZ port is hooked to their Back Office computer. They are using wifi as internet for the Back Office computer, and the ethernet adapter as the location for the cable receiving the DMZ Connection. When I contact the Gilbarco helpdesk, they are telling me that they can connect on their side and they can see the connection and enter the credentials to login to the ip address.

I was actually doing the configuration through port #4 and not the DMZ port. I initially set the adapter setting to the ip address of the router so I could connect that way and then once the settings were configured, I changed the adapter back to the DMZ IP parameters and connected from DMZ to Back Office computer to verify connectivity.

This is where I get the issue where I can ping the DMZ Gateway but yet I still get those errors.

Id id the same exact configuration to another location and it connects like a champ but for some reason I get "The remote device or resource won't accept the connection" at this location.

 

[bill001g]

Your first challenge is to be able to get into the configuration with the web browser on any port.

I forget if these devices accept the standard cisco console port method....they will of course be command line mode configuration if they do. If I remember right these are not IOS based boxes so I don't know what you can configure via line mode.

All that messages means is your pc attempted to connect to the router on port 80 or maybe 443. Either the traffic is being blocked or the web browser application is broken or possibly disabled. You have to hope that there is a way to see what the problem is via the console.

At least it has a factory reset button, a lot of the cisco enterprise gear you can only reset via command which get difficult when the software is being buggy.

Not sure about these router but they are kinda old. I do know that in some other very old routers the newer web browser refused to connect. It was some feature that was not supported in the newer browsers and you have to use some old mozillia browser.

 

[jonchaves]

When I ran the troubleshooter, I get this error "the device or resource(10.5.60.1) is not set up to accept connections on port "the file and printer sharing(SMB)"
I verified that the Windows Feature SMB 1 was turned on and googled and tried everything that was suggested in those sites, but I just cannot get this connection whatsoever. Even when I turned the firewall off on the Cisco router, and I still get this error. I am at a loss of words as to why this cannot connect, when 9/10 times this connects easily. The person even bought a new laptop and no matter what device we connect it to, it gets this error.

I also have the Network Diagnostics log if you or anyone you may know is good at reading the event viewer logs and could see where it is getting hung up at.

 

[bill001g]

So how did you manage to turn the firewall off on the cisco router. This implies you can connect using a different port on the router.

The firmware on the router is the same no matter what port you connect to so if it work on one but not the other then your PC is fine. It has to be something related to the DMZ port settings.