I have backup from SFOS 15.01.0 MR-3. I also have exported config from the same machine. I am confused why there is backup section and Export config section but I assumed i need to backup both and import both so that's what I did. Machine was running on ESXI 6.0. I reformatted and reinstalled latest ESXI 6.0 and installed SFOS 15.01.0 MR-3 from ISO downloaded from sophos. I went through config wizard and got internet working again. Everything works normal at this point.
Then I went back and restored config from my backup - it caused SFOS to restart and after that I imported another backup. That did not cause SFOS to restart but I restarted it manually just to be sure backup settings were applied.
I went back to verify that my settings were restored - it looked all good. I tried to use internet and I had very intermittent connection. CURL-ing google.com would not succeed half of the times. Some pages would load some wouldnt. I couldnt run apt-get update (it kept retrying). I went to SFOS and did reset to factory settings, went through wizard again and internet worked nice. I restored config again and internet went crazy again.
I gave up on restoring and reconfigured firewall manually after resetting to factory settings again.
One thing that is changed between old and new SFOS VMs is NIC MAC addresses. Since I recreated VM, ESXI would assign it random MAC address that wouldnt be same as previous one I had on old VM. Other then that, hardware is exactly the same.
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