Problem Of Os - NEC Express 5800 Series Maintenance Manual

Chapter 1 Maintenance
5.8

Problem of OS

[?] Windows operation is unstable
Have you installed the Starter Pack?
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If the network driver is installed after OS is installed, Windows operation may become unstable. Install
Starter Pack by following "Installation Guide (Windows)".
[?] After the system is restored from the backup tool, Windows is misbehaving
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Apply Starter Pack by using EXPRESSBUILDER (see Chapter 2 Installing the Bundled Software in
"Installation Guide (Windows)".
[?] The system time lags
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In Windows Server 2008, if you do not use the server that adjusts time such as NTP (Network Time
Protocol) Server, the system time may differ from actual time.
In this case, use NTP server or disable Windows Time Service.
[?] Fails to be recognized on network
Is the cable connected properly?
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Securely connect the proper cable to the network port on the rear of the server. Additionally, make sure
that the cable conforms to the network interface standards.
Are BIOS settings correct?
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You can disable the internal network controller using the BIOS setup utility. Check the settings with
BIOS setup utility.
Have you completed protocol and services settings?
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Verity that the network driver for the server network controller has been installed. Also verify that
protocol such as TCP/IP or various services have been properly specified.
Are transfer rate settings correct?
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Verify that the transfer rate and duplex mode are the same as those of the connecting hubs.
[?] Communication performance of a network adapter is degraded
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NEC recommends that the value of Jumbo Packet be 4,000 bytes or less for N8104-128 if the settings of
Flow Control are specified as other than Disabled.
For Standard network adapters or N8104-132/133/138, Jumbo Mtu (Jumbo Packet) value is only
supported 4608 bytes or less.
If a value larger than the recommended value is specified for Jumbo Packet, the communication
performance may be degraded.
[?] There are RX dropped packets (ifInDiscards) when the system is in operation on Linux and Windows
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Although there may be RX dropped packets when the LAN is received multicast frames, there is no
operational problem.
Express5800/T110f-S, R110f-1E, T110f-E Maintenance Guide
5. Troubleshooting
37