[jcifs] negotiation error

[Alvin]

Hello,

I updated to the latest version of JCIFS and I keep getting this error 
intermittently (95% I have no problems):

java.net.UnknownHostException: Failed to negotiate with a suitable domain 
controller for ***
	jcifs.smb.SmbSession.getChallengeForDomain(SmbSession.java:124)
	jcifs.http.NtlmHttpFilter.negotiate(NtlmHttpFilter.java:150)
	jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:114)

I'm using JCIFS through Tomcat and the filter paramters are as follows:

<filter>
    <filter-name>NtlmHttpFilter</filter-name>
    <filter-class>jcifs.http.NtlmHttpFilter</filter-class>
    <init-param>
        <param-name>jcifs.smb.client.domain</param-name>
        <param-value>***</param-value>
    </init-param>
    <init-param>
        <param-name>jcifs.netbios.wins</param-name>
        <param-value>***.***.***.***</param-value>
    </init-param> 
    <init-param>
        <param-name>jcifs.smb.client.username</param-name>
        <param-value>username</param-value>
    </init-param>
    <init-param>
        <param-name>jcifs.smb.client.password</param-name>
        <param-value>password</param-value>
    </init-param>
</filter>

with the appropriate values being filled in. It's not a typo or misnamed 
resource or unknown host, since it fails only 5% of the time (usually it works 
flawlessly). The problem is exacerbated if there is a heavier load. Is there 
another parameter or flag that could help with this problem?

Alvin