Thank you so much for your help! Hi, @alek.gilot can you also try this and tell us the result? 
hope it works.
Hello @alek.gilot and @accounts
hope you are all doing well. Are you still suffering from this issue? It is related to the local firewall strategy. We can provide the relevant information(domain/IP) to your IT to unblock it in the firewall as a temporary solution, please check the private message. Thank you!
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Hi thx for the support
I send the message to the IT team ,
and It worked, perfect, fast and reliable,
thx for the support ,
awesome, !!!
Alek.
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Good to hear!
@Leah_Li , I am having the same problem.
Please help!
@kheng , Do you know what are the steps requird to unblock an IP address?
Is it a setting in Windows Defender Firewall? Thanks!
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Hello my friend, where in the firewall do I put this information? I’m having the same problem.
Hello my friend, can you provide me with the necessary information? And where in the firewall do I put this information? I’m having the same problem.
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having this problem also, can you provide detailed steps please? thanks. upgraded to pro version to use all of the features but it doesn’t let me use this AI enhancer.
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I also have the same problem. I’m worried because the deadline is just around the corner.
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Turned off the firewall and it still doesn’t work.
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I wrote to support@d5techs.com and contact@d5techs.com . Waiting for reply… I hope on Monday. I also have a deadline 
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i also wrote to [support@d5techs.com no reply for a week, installed new drivers unistall d5 turned off the firewall etc etc and still no solution
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I don’t know if it’s related but I’m getting security warning when I attempt to open d5next dot ai
It might be an expired certificate.
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I tested switching VPN on and off or changing the country - doesn’t work
I also tested with two internet providers: cable and mobile data - doesn’t work
I can access d5next.ai without a problem.
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I have the same issue. My work has affected significantly by this issue? Any solution yet?
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Hi, since yesterday I have the problem too. We also using the official 2.8 version 2.8.0.0469
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Hi all, the issue i was having was due to firewall so allowing the IP address and port worked for me:
IP: 148.153.121.249
Port: 19998
Country / Region: United States
I tested previously on mobile data connection using wifi hotspot and had no issue so it was a firewall issue. If you are using mobile data hotspot and still cannot get through it may be something else .