Failed to connect web gui because didn't use the right web file

Publication Date:  2014-01-31 Views:  734 Downloads:  0
Issue Description
We attempt to  connect to  the web management console of one of our switch S5700-52P-PWR-LI-AC, but when we enter our credential admin/admin a pupop appears and say “ Faild to connect to the server”.
I disabled http secure server and http server and rebooted the switch but it seems to have no effect.
Alarm Information
Handling Process
customer need to upload the webfile required by system software version

   12  -rw-        685,821  Jan 23 2014 22:30:12   s5710ei-v200r003c00.001.web.7

Root Cause
Checking the configuration we see that authentication was configured 

[sssss]user-interface vty 0 4
[sssss]authentication-mode aaa

authentication-scheme default
authorization-scheme default
accounting-scheme default
domain default
domain default_admin
local-user admin password cipher ssssssss
local-user admin privilege level 3
local-user admin service-type http

Directory of flash:/

  Idx  Attr     Size(Byte)  Date        Time       FileName
    2  -rw-      1,519,039  May 13 2013 15:58:04
   10  -rw-     22,045,068  Jan 23 2014 01:12:02

204,556 KB total (160,916 KB free)

customer was using version but wrong webfile version