Both the net server and jdbc one, report:\n\nLEGACYPDCSVR      ::[38417        IIGCD, 10838     , 00000000ffffffff]: Fri Mar  3 16:15:15 2023 E_GC001E_ACCEPT_FAIL Connecting client failed to perform all actions required for a successful connection. This may indicate a problem with the client, a foreign client that does not conform to the correct IPC protocol, or a malicious client attempting to disrupt the server.\n\nLEGACYPDCSVR      ::[45824        IIGCC, 10819     , 0000000000000008]: Fri Mar  3 16:15:15 2023 E_GC001E_ACCEPT_FAIL Connecting client failed to perform all actions required for a successful connection. This may indicate a problem with the client, a foreign client that does not conform to the correct IPC protocol, or a malicious client attempting to disrupt the server.\n\nSlow down may caused by the overwhelemed GCC/GCD. Kindly exclude ports 21064 and 21071 and let us know what will happen.\n\nThank you.