Sonicwall Global Client VPN cannot connect to Sonicwall TZ300.
The VPN which has Spectrum as the ISP cannot connect to the Data Center on port 500 which has Comcast ISP. It attempts to connect. Sonicwall error log has Received packet retransmission. Drop duplicate packet.
It had connected with no problems until yesterday. Other VPNs on different ISP can connect without any problems.
Is there a problem between the two ISP?
There was another person with same problem down the street. Changed her ISP and cable modem and can connect without any problems now.