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  1. License activation failed

    Hi Yiannis, Thanks a bunch - already did all of that, except for restarting the 3cx-services inbetween :( Will check again tonight; otherwise it becomes likely we stay on v14 for now. EDIT: ah, Nope - although I didn't restart the services, there was a complete reboot in the meantime. I fear...
  2. License activation failed

    It's been a while..... Now the firewall has been opened / deep packet inspection disabled. Local Firewall disabled. No anti virus present. dns flushed. resolution to activation.3cx.com works fine. No luck at all. Any other clues? "License Activation Server cannot be reached. Check your...
  3. License activation failed

    I'm stuck in similar situation when migrating to V15.5. All local security is cut down, hence disabling the corporate firewall's deep packet inspection is likely to get very political. Are there any other possibilities to get this through? (As the license basically has been activated before...
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