(1)please use https to access OLT web, such as https://192.168.8.100
(2)Please use console cable to login, then check login-access rule by command “show login-access”, delete the deny rule or disable login-access function.
(3)Please check web access port by command “show web port”, if it’s not default port 443, please add port at the end of ip address.
(4)Please check olt version by command “show version”, if it’s old, please upgrade to latest version first.