Hl7800 AT+KTCPRCV omits "CONNECT"

Hi,

It has occured at least 2 times that the modem omits the “CONNECT” reply after trying to receive tcp data.
The FW is 4.5.4.

The following sequence happened just recently:

AT+KTCPSND=1,4
CONNECT
OK
+KTCP_DATA: 1,1035
AT+KTCPRCV=1,1035
CONNECT
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M$^���u\����*F�09~�r (l�2U-��2M�$i~�i؊� ,�(k=��Ys*��F7#.��1�V�q!̙r���K�;��‚=Y*L'�$�� �-'? ���h���dQ��9�]��;+��v4�#��k�n�%�5�4'�inj�=| W�揠U_3�!�WDD�$�-��,��0�L��z�������
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;�
�;["��^4��WH[e�^��
�pЄDD�Ō–EOF–Pattern–
OK
AT+KTCPSND=1,4
CONNECT
OK
+KTCP_DATA: 1,1035
AT+KTCPRCV=1,1035
CONNECT
�>i_}YM�<�$�3�ѐ

P�R�
p�(Ot������� [׬;�(\FB�� �*^%Bu�AYL�I�7�J� ;@%��l2�?'�LH]�$zd7$�3PZXU�e���YYI~e���26?�uA�,��[�/���h�C���2t!�B84�.� [X�>#E�}]~b͜ؼ��<���``���+
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mĖ�;�t/��"1Z<�6��lz$�dv��7{��8��#b
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�Y�D+’��k0\�? lr7ph���Q�_+9�p]��u���>�]OδRn�%B��}'��t0o�f> XףҾ=C h��/E�–EOF–Pattern–
OK
AT+KTCPSND=1,4
CONNECT
OK
+KTCP_DATA: 1,1035
AT+KTCPRCV=1,1035
C}��ʮhUCJ}!n$)Hȱ��s ��pz���˔,<9�+��^5f���.!
�d-�ŏѠ��%nZ�>�#z3G1
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y:D-�0aP
ߑ���<Ww@1ɏ%-����rL�]0j��; �;�({��N /�'ߥ(A�JZ##m��! �� �� ��G#4�>�Z�f0,Mj K�o�;� �@Sn�30w@�]B_�48�/5X0M�,}���t�K�w�|�i�0�
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�i�-l.@lSF37�%M��9�0V�;���:/ig��V"Q;f?�jEæ-�%–EOF–Pattern–
OK

Best regards
Martin