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We are testing new modem, RUT955, ver 06.04.5, Mobile (only) connection, Vodafone SIM - Italy,

The Mobile connection randomly drops (usually between 10min 2hours), automatically reconnects in few (<10) seconds  (the status and Log pages report "Connected"), but traffic stops: default route disappears, ifconfig lists a 3g-ppp interface.

  • 2 LTE antennas are "firmly" connected
  • Tested in different sites, same problem (even if on avarage disconnection time changes). RSSI (gsmctl -q) -77dBm
  • We use the modem to build IPSEC connection to Main Office. (It  works as long as data flow)

When default route is manually re-added, IP packets start flowing again.

Regards

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I'm having the exact same problem after upgrading firmware on Rut950 to 6.04.05. Previously using version 3 firmware with no problem. Also using ipsec vpn connection. Mobile data disconnects, reconnects almost immediately but Internet access lost. Full reboot or modem reboot clears problem.

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Hello.

We strongly recommend to reach out to your sales manager representative and send him a troubleshoot-file of the device so he can create a query and we can analyze the subject deeper.

Regards
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We temporaly solved with a script, runs every minute, that adds a default route. Also sent log files to the seller that should be in contact with Teltonika.

Alberto