Web portal Error 404

Question

Connection was impossible on the portal. Login + Password ok -> connection .... waiting but nothing appears. 
 After a reboot : 
 Ip : Error 500 
 Ip/admin : Error 
 Not Found 
 The requested URL /admin was not found on this server. 
 Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request. 
 
 Many reboot but always the same.

sachingurung · Answer

Hi Benoit, 
 Are you able to take the SSH access to the UTM? 
 If you cannot reach the WebAdmin login page, the allowed networks may have changed. You can reset the allowed networks for WebAdmin via the following commands: 
 
 Type: cc 
 Type: webadmin 
 Type: allowed_networks@ 
 Type: =['REF_NetworkAny'] 
 
 Any help?