Bolt, Flexy

I have a Bolt running here for some testing. I can connect to the HMI using my cell phone which is connected to the Bolt locally. It seems like I can not access the internet when connected to the Bolt. The Bolt is connected to our Ewon Flexy which has internet access. When I plug in to the Ewon LAN I can access the internet. When I connect to the Bolt there is no internet access but I can connect to the HMI. I did notice there is no place in the network setup of the Bolt to enter a DNS address. The Bolt is running as an access point with it’s gateway pointed to the LAN IP of the Ewon.

Should the Bolt allow Internet access?

It sounds like either the traffic destined for the internet is not being forwarded or you are not reaching a DNS server. I would need more information to determine the problem.

You can test whether or not it’s a DNS issue by trying to ping an IP Address on the internet, like 8.8.8.8, for example. If you can’t ping, then it’s a routing issue. If you can, than it’s DNS.

Can you test that and also provide some more information, such as the IP addresses of Flexy and Bolt, whether or not you’re using DHCP or not, what you can and cannot ping from the cell phone etc. (You may need to download a terminal emulator or other network tool from your phone’s app store to run the ping command, or connect using a laptop).

From customer:

Originally to get internet access through the Ewon we needed to modify the following 2 screens. This allowed us to get internet access and send outgoing emails from the PLC

<img width=“922” height=“511” style=“width:9.6in;height:5.325in” id=“Picture_x0020_2” src="/uploads/default/original/3X/b/b/bbc65574bdfc45ca7fd559befe95df6fc031da20.jpeg" alt="Graphical user interface, text

Description automatically generated">

The address of the Ewon is 192.168.10.10

<img width=“927” height=“544” style=“width:9.6583in;height:5.6666in” id=“Picture_x0020_4” src="/uploads/default/original/3X/a/9/a9828e63c155f80d2de2187575f57db72b6d2c9d.png" alt="A screenshot of a computer

Description automatically generated">

When my computer was connected to the Bolt I could ping 192.168.10.160 (HMI on network) but could not ping 8.8.8.8

When I plugged my computer into the Ewon I could ping the local device and I could also ping 8.8.8.8

When plugging my computer into the Ewon I set the following settings on the PC. The Ewon does not have a DHCP server.

  • IP 192.168.10.35
  • Sub 255.255.255.0
  • GW 192.168.10.10
  • DNS 8.8.8.8

When connecting to the BOLT I let DHCP of the BOLT take care of network assignments. The Bolt gave my computer an IP address of 192.168.10.201

The BOLT was set up as

  • IP 192.168.10.11
  • Sub 255.255.255.0
  • GW 192.168.10.10
  • DNS (Could not enter DNS)

I think the issue is likely that the device does not have the correct default gateway set. The default gateway is the Ewon, so you will use the Ewon’s LAN address (which I assume is 192.168.10.10). If you are using a phone, you may want to set up the Ewon to be the DHCP server for the LAN, and set the Bolt to forward DHCP requests. That way you can also set the DNS address using DHCP. See:

DHCP Server on LAN