I am using SONICWALL to connect VPN to three other offices in US(Bandwidth is 4.5Mbps) from INDIA( bandwidth is 2Mbps). The connections are made successfully but one fo the two connections disconnects regularly (no exact time) one will negotiate connection in 5-10 minutes, but the other one some times take long time or not connects all the day.
TCP connection dropped : TCP NetBios SSN TCP,TCP Squid,TCP Port: 1061,TCP Port: 1048,TCP MS SQL,TCP SMB
UDP packet dropped : UDP NetBios NS UDP,UDP Port: 30123
ICMP packet dropped: ICMP Time Exceeded, Code: 0
Received notify: INVALID_COOKIES, Received unencrypted packet in crypto active state (source IP US destination IP India)
This is another log today i got very first time
IKE Initiator: Remote party timeout - Retransmitting IKE request.
Payload processing failed
Computed hash does not match hash received from peer; preshared key mismatch