RUT240 loosing comms to LAN devices, fixed by router reboot

Hello,

We use RUT240 to access devices on remote LAN network.
For a few days now, we have a problem with loosing communication to these devices.

Every once in a while, we loose communication to LAN devices behind the RUT240.

  • Rebooting router restores communication.
  • No changes were made to the router configuration priori to the first occurance of the issue.
  • We have updated FW to the latest version, but issue persists.
  • Interestingly, when comms fault occurs, LAN devices in question get detected in Tetlonika RMS (in VPN hub “Routes” section), but not locally on the router (in Status/Network/Topology section).

Can you please advise how to troubleshoot this issue?

Regards,
Adam

Hello,

Here are a few questions to help diagnose the issue:

  • Can you still ping the LAN devices?
  • Are the DHCP entries still present?
  • Are the devices still visible in Status → Network → Topology and “Scan all”?

Additionally, please provide a troubleshoot file from the device after it has experienced the LAN issue. Since this file contains private information, we’ll handle it on a secure platform. Instructions for accessing this platform have been sent to the email you used to register for this forum.

Best regards,

Hello Marijus,

Thank you for the quick reply.
I will follow up questions above and get anwers, when issue happens next time.

Also, can you please resend instructions for file upload (I haven’t received anything yet)?

Regards,
Adam

Hello,

I have resent the form to your email address.

Best regards,

Hello,

Can you please confirm if you received my email and filled form? I sent it earlier this week.
I couldn’t attach file to a form (tried different browsers)- is there alternative way?

Just in case, below are anwers to your questions:

• Can you still ping the LAN devices?

A: No, I can’t ping any of the devices.

• Are the DHCP entries still present?

A: When issue happened, in section “Status->Network->LAN->DHCP Leases” there were no entries. Also, all LAN devices have static IPs assigned, so I wouldn’t expect any DHCP entries to be present anyway.

• Are the devices still visible in Status → Network → Topology and “Scan all”?

A: No, no devices are visible. They were all visible priori to issue occurance.

Regards,
Adam

Hello,

Yes, we received your email. I have replied to it. Please respond with the troubleshooting file, and we will look into the issue further.

Best regards,

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