Hi - After updating 3CX to 15.5 U2, our windows desktops started pulling down the new client. They have upgraded OK, but the first launch is triggering an outbound web block on our Anti-malware software (Malwarebytes) The 3CX client is trying to reach various subdomains of symcd.com at IP address (188.8.131.52) Not sure what's there that the 3CX client needs, but Malwarebytes doesn't like the look of it... Does anyone have any ideas as to what the 3CX client needs at that domain? Is it safe to whitelist that domain? Despite those outbound web blocks at the first launch, the 3CX clients (x40 of them) seem be working OK - just wondering though if I have an incomplete installation somehow and its going to come back and bite me next week? cheers..