out of index with disconnect function

Hello
I have a problem with disconnecting connections once I try to remove the disconnected connection from the NetworkConnection list or native NetworkConnection list I encounter with the Out of index error in the server side .
this is my code.

Code (CSharp):

1.  
2.     if (_connections.Count > 0)
3.         {
4.             for (int i = 0; i < _connections.Count; i++)
5.             {
6.  
7.                 DataStreamReader ServerStream;
8.                 NetworkEvent.Type cmd;
9.                 while ((cmd = _serverDrive.PopEventForConnection(_connections[i], out ServerStream))
10.                     != NetworkEvent.Type.Empty)
11.                 {
12.                     if (cmd == NetworkEvent.Type.Connect)
13.                     {
14.  
15.                     }
16.                     else if (cmd == NetworkEvent.Type.Data)
17.                     {
18.  
19.                
20.                     }
21.                     else if (cmd == NetworkEvent.Type.Disconnect)/////////
22.                     {
23.  
24.      
25.  
26.                         _connections.RemoveAt(i);
27.                         //   i--;
28.  
29.                         if (i > _connections.Count) break;
30.  
31.                     }
32.  
33.                 }
34.             }

when I remove the " _connections.RemoveAt(i);" the error will not display.

https://ibb.co/WcM47c0

Code (CSharp):

1. ArgumentOutOfRangeException: Index was out of range. Must be non-negative and less than the size of the collection.
2. Parameter name: index
3.   at System.ThrowHelper.ThrowArgumentOutOfRangeException (System.ExceptionArgument argument, System.ExceptionResource resource) [0x00029] in <695d1cc93cca45069c528c15c9fdd749>:0
4.   at System.ThrowHelper.ThrowArgumentOutOfRangeException () [0x00000] in <695d1cc93cca45069c528c15c9fdd749>:0
5.   at ServerCode.Update () [0x001eb] in <cfbe4c1cbbe34153a2dc6d0d3c1177cb>:0