Ich denke mal, jetzt solltest du langsam jemanden suchen, der sich mal dein Netzwerk ansieht.
Hier eine kleine Hilfe aus der KB (1094812):
Problem
Lotus Domino servers or Lotus Notes clients running on Microsoft Windows systems report the following error:
"The TCPIP stack reported that it ran out of memory."
This error is one that Domino or Notes reports from the TCP/IP stack; it is not an internal Domino or Notes application error. You may see this error condition when the Notes client accesses a server-based service (such as N-RPC, POP3, IMAP, SMTP, LDAP or NNTP) or a task like mail routing, replication, or clustering services. What steps can you take to correct the situation?
Solution
The TCP/IP stack can return this error when the following conditions exist:
The system does not have enough memory resources to sustain the number of active sessions either in an Established or Time_Wait condition.
The network is encountering problems that create sessions in a Close_Wait state.
Recovering from the error
To recover from the error, you can initially try stopping and restarting the TCP/IP port (that is, release the port) or stopping the Domino server. If those actions do not resolve the problem, the TCP/IP stack may have hung threads. To clear the TCP/IP stack, shut down the Windows server and do a cold reboot of the computer so that all processes in memory are fully cleared.
Analyzing possible causes
Run a NETSTAT command on the server to collect data for analysis.
If NETSTAT reports a large quantity of Close_Wait errors based on remote client or other server connections (based on their IP addresses), work with your network administrator to isolate what has changed in the network. If connections are listed on both the local and foreign from the same IP address of the Domino server, you may have an application failure. (Note: There may be one or two connections listed; that is normal output as these are poller probes).
If NETSTAT reports a large quantity of Time_Wait connections, this output might be normal based on the services you have running on the Domino server. For example, HTTP is a stateless connection that builds up many Time_Wait connections. For HTTP, you should review your Web server page design as you may be creating excessive Time_Wait connections. For example, in one particular case a customer implemented a new mail notification service for a customized Web mail system. The notification service did not close the socket after opening it. Therefore, there were around 4000 TCP "Listening" ports created before the Domino server reported the TCP/IP out of memory error.
Other services that are stateful hold the connection to the server until the initiating system closes the connection. In the case of a Domino server or Notes client offering SMTP connections to the Internet, you may see Domino or Notes creating many connections that go into a Time_Wait for each remote SMTP server it has connections to. If Domino or Notes does not access a SMTP relay beforehand, this output is normal. If you find that many Time_Wait connections cause memory resources to be depleted, you may want to incorporate a relay system in front of the Domino or Notes client or add additional memory to the system.
If the error condition occurs repeatedly within a short timeframe, yet the Domino server or Notes client has been running without difficultly for a long period of time, the operating system or computer might need housekeeping, such as defragging the hard drive that contains the Page file or Virtual memory file and data files for the Domino server or Notes client. Make sure you do not run the defragment program while any applications are running on the system.
If you still encounter the error after basic maintenance, you may be running low in either physical memory or the page or virtual memory space allocated on the hard drive. Try freeing hard drive space on the volume on which the page or virtual file resides, or increase the size of the page or virtual memory.
In addition to NETSTAT, you can monitor Perfmon page faults. If page faults appear high on a Domino server system, there could be an I/O bottleneck of the paging file due to the type of hard drive are using.
Note: While this technote discusses issues related to a Microsoft Windows operating system, some of these issues can also affect other operating systems if their TCP/IP services are not correctly tuned.
Historical Number: 181414
Keywords: Domino Server; Networks; Notes; Protocols; TCP/IP; tcpip
