Sync Problem Android <-> Wine(Fedora)

[damonwinner]

Hello!
I need to use EssentialPIM on a working laptop with Fedora 30. Installed using WineHQ. The program works fine (at least I didn’t notice any bugs). But I need to synchronize with an Android phone. In the age of modern technology, I want to do this over Wi-Fi. And here the problem begins.
1. On the phone and computer, the programs are officially purchased.
2. All tests in one Wi-Fi network.
3. Synchronization Android <-> Windows 10 laptop without problems.
4. Sync Android <-> Fedora 30 laptop. Not happening.
 4.1 The phone finds the laptop's IP and port, tries to synchronize and gives an error that the firewall may be turned on. But I did not turn on anything. And if the firewall were turned on, then a network search would not work.
How can I get more information from my phone and computerabout sync proccess?
What would you recommend to resolve this issue? I think a solution must be easy.
Thanks!

[admin]

Answered in another thread, please do not post duplicate requests.
viewtopic.php?f=25&t=34453

[damonwinner]

Yep! thanks a lot!

[damonwinner]

For English speaking users.
I've tested EssentialPIM Pro 8.65 on Fedora 30 with WineHQ 5.0. It works well. Only one notice. You need to open sync port (default is 21114) in Firewall.