> Source: [sk155313](https://support.checkpoint.com/results/sk/sk155313)

# sk155313 - SmartView page is stuck in "Loading SmartView..." when connecting with a web browser to the Management Server by its hostname

| Property | Value |
|----------|-------|
| Solution ID | sk155313 |
| Date Created | 2019-06-09 |
| Last Modified | 2023-08-29 |
| Technical Level | Advanced |
| Products | Security Management Server |
| Versions | R81.10 (EOS) |

## Symptoms

- * When connecting with a web browser to `https://<HostName of Management Server>/smartview` and opening a new tab, it shows "*Loading SmartView...*" with no actual results.

* SmartConsole debug (according to [sk112334](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk112334)) shows messages similar to these:

  `
  [1] [DATE TIME] (WARN ) SmartViewWrapper.ViewModel.SmartViewViewModel - SmartView Refresh retry 2 SmartView loaded with status code 400 `  
  `
  [1] [DATE TIME] (DEBUG) SmartViewWrapper.ViewModel.WebControlViewModel - LoadView with timeFrame Last 7 Days, which is the DefaultTimeFrame `  
  `
  [1] [DATE TIME] (DEBUG) SmartViewWrapper.ViewModel.WebControlViewModel - WebControlViewModel - final SmartView url is: https://indasa_MGMT:4434/smartview/embedded/#view-id=00000000-0000-0000-0000-A69BF720DA43&locale=en-US&refresh-application`  

  `
  code 400- bad request`
* Apache debug (according to [sk84561](https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk84561)) shows messages similar to these in the *access_log* file:

  `
  172.16.12.211 - - [DATE TIME] "GET /smartview/embedded/ HTTP/1.1" 400 347`  

  after enabling debug on apache - from the error_log of apache:  

  `
  [DATE TIME] [core:debug] [pid 7905] vhost.c(793): [client 172.16.201.21:1136] AH02415: [strict] Invalid host name ''indasa_mgmt'', problem near: _mgmt `  
  `
  [DATE TIME] [core:debug] [pid 7905] vhost.c(888): [client 172.16.201.21:1136] AH00550: Client sent malformed Host header: indasa_mgmt:4434`

## Cause

The hostname of the Management Server contains the underscore character "_".

"HTTP references the DNS RFCs for hostname syntax, and DNS does not permit underscores in hostnames."

## Solution

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