Event ID - 4286

Event Id4286
SourceWINS
DescriptionThe WINS server cannot make or accept this connection since the limit of connections has been reached. This situation is temporary and should resolve by itself in a while. Data Words: 0000: 00001009 e0000001 The translation of error code 4286 is WINS_EVT_CONN_LIMIT_REACHED
Event InformationResolution for the WINS Event ID 4286 Event Message:
To resolve this issue, you can either wait for the issue to resolve by itself or follow these troubleshooting steps: 
1) Examine your replication topology, and make sure that you are configured for a true Hub-and-Spokes replication topology.
2) Verify that there is not a TCP connection shortage. Before the TCP packet is sent, the computer verifies that it has sufficient resources, for example free outgoing TCP ports. To verify that there is not a TCP connection shortage, follow these steps: 
Run the following command on the failing computer (at the time that this computer is logging the event ID 4286 errors), and then save the output to a file. To do so, run the following command from a command prompt:
netstat -a

Look for total number of sessions and used ports, examine the state of the sessions to determine whether the number of sessions has reached the maximum value. By default, the maximum value is 5000. 

If the output indicates that the server has exhausted all the ports between 1024 and 5000, the server has run out of ephemeral ports. To resolve this issue, follow these steps: 
Start Registry Editor.
Locate the MaxUserPort value under the following key in the registry: 
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Double-click the MaxUserPort value, type 65534 in the Value data box, and then click OK.
Note: 65534 is the maximum value for the MaxUserPort value.
Quit Registry Editor.
Restart the WINS server.
Reference Links Troubleshooting WINS Error Event ID 4102, 4243, 4242, and 4286 Messages

Catch threats immediately

We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.

See what we caught

Did this information help you to resolve the problem?

Yes: My problem was resolved.
No: The information was not helpful / Partially helpful.