Thank you very much @giuseppe.corti, I have sent the logs from my personal email "mankeer@gmail.com", I have attached the logs for both LS server and client,

I need to know if this is a general problem [for all clients, I have about 7 to 10 clients keep claiming of this] or it's a specific problem for those clients only.

I appreciate your help in this problem, I will be so thankful if you advice how can I distinguish this problem and how it can be solved.

Regards