Ewon cosy - possible to connect to it, but cant ping any device or the cosy itself

Pavel Chvojka

• September 24, 2024 13:58

Hi, 

I configured a Ewon Cosy 4G connected to cellular today. I have set the local IP to be on the same subnet as my PLC and devices, and I can access the Ewon through the web browser and my eCatcher client. But when connected through eCatcher, I can't ping the local devices, I also can't ping the Ewon's local or VPN IP address. 

While trying to connect, disconnect, and restarting eCatcher, I was somehow able to connect to the local devices. But when I closed eCatcher and opened it again, I couldn't get it to work again. 

I also uninstalled my OpenVPN connect program and eCatcher, installed it again, and it didn't help. 

I feel like I have a similar problem as https://forum.hms-networks.com/t/ewon-cosy-connect-issue-cant-ping-from-1-laptop-but-can-from-another/68900 

Can I please get any help on how to continue troubleshooting, because I have been struggling with this for a whole day.

 

Thank you.

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• 

  Kyle Reynolds

  • September 24, 2024 14:09

  Hi Pavel, 

  The first thing I would check are the points in the troubleshooting article: Unable to Ping or Connect to LAN Device

  Also, run the 'route print -4' command in the command prompt to make sure there aren't any overlapping routes. For example, our corporate VPN overlaps with some of the Talk2M subnets, so I have to disconnect from it sometimes to use eCatcher. 

  Best Regards,

  Kyle

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  Pavel Chvojka

  • September 25, 2024 07:27

  Hi Kyle, 
  
  I have gone through the troubleshooting article checking all points but none of them helped. 

  Excuse me for my lack of knowledge but how do I see if there are any overlapping routes? Also, it is important to note that I am not using any other VPN while trying to connect to the Ewon. 

  Thanks, 

  Pavel.

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  Prajnay Yadav

  • September 25, 2024 09:24
  • Edited

  Hi Pavel,
   
  Could you please try the following ->

  • Edit the parameters of your TAP adapter
    
     
  • Disable all Protocols except "Internet Protocol Version 4" and validate
    
    
    
  • Restart PC and try again.

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  Pavel Chvojka

  • September 25, 2024 12:00

  Hi Prajnay, 

  
  Good idea, I went through trial and error and found that ''S7-PLCSIM Advanced Virtual Switch'' was giving the issue, I turned it off and now it seems to work.

  Lets hope it stays this way

  Thanks for the tip. 

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