Connection failure possibly related to protonvpn

Support & Help Requests
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1

Greetings.

Am running UM 20.04.3 64-bit on a somewhat old system76 wild dog pro (i5-6600, 16 GB memory, nvidia 730). A few days ago I installed protonvpn successfully and things went well until today. When I booted the machine, I could establish no network connections - vpn or otherwise. So I did the following.

  • determined that it was a software problem by booting from a UM 20.04 install cd and making my normal direct network connections
  • booted back from disk
  • completely removed protonvpn and all related components that I could find using synaptic. (I am assuming that this is the problem because it is the only recent change to the system.)
  • restarted and still was unable to make network connections
  • submitted a ticket to the proton folks to request help

I guess that I could try doing a repair/reinstall of UM from the cd, but before I do that I thought that I should seek ideas here from people with more networking expertise than I. Perhaps I can restore networking without a full reinstall.

Thanks for your thoughts.

2

I'm glad to be able to answer my own question. Perhaps others can benefit.

The protonvpn support team responded quickly, and based on their guidance, I found an errant connection. Using the network manager cli (nmcli), I deleted it, and internet connectivity was restored.

A happy ending.