Tenda W308R User Manual page 60

11N Wireless Broadband Router User Guide
ftp://172.16.102.89:21 in the address field.
NOTE:
If you set the service port of the virtual server as 80,
you must set the Web management port on Remote
Web Management screen to be any value except 80
such as 8080. Otherwise, there will be a conflict to
disable the virtual server.
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