the error this cite can't be reached when using IOT 2040 to connect PLC

Hello everyone, I'm a student currently, I'm working on a project related to Node-red and PLC. 

I have a problem: when I download node-red on a browser to program, it shows the error: this cite can't be reached. Although I change IP the both IP on IoT and PC, and try many times again, I fail. I hope to receive many bits of help from you. Thanks a lot. 

Hi.

Currently, I have a problem related to PLC and Node-red thought IOT2000 module. 

When I plugged between IOT2000 and PC thought SCALANCE module, it show Node-red in my browser. But when I plugged PLC into the SCALANCE module, it show an error: This site can't be reached. Althought I tried many times like: change IP address, change other PLCs but it still not. Do you know to overcome it? please.

Hi.

I'm using the IOT2040 module.

Node-red display normal until I plugged from PLC to SCLANCE module to connect Node-red but it show the error: this cite can't be reached. Althought, I trying other ways and many times but It doesn't.

I don't know how to fix it

Hi.

I'm using the IOT2040 module.

Node-red display normal until I plugged from PLC through the SCLANCE module to connect Node-red but it show the error: this cite can't be reached. Althought, I trying other ways and many times but It doesn't.

I don't know how to fix it

Hi, 

after I install and setup iot2000 by Putty, I type "top -o %MEM" to see Node-red but it's not on the list. And I still run node-red on Putty by handmade to appearance Node-red on the browser, but it doesn't work. I see in the file that it has to used WinSCP but doesn't direct obviously. 

How do I to fix the errors?

I'm hoping your help.

Hi,

I can access node-red like before, but today it's like that. Like the error in the title, and I don't know what the problem is. How to fix it?