HP Security Camera ML100 manual Network controller problems

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2.Be sure no line interference exists. Retry the connection by dialing the number several times. If conditions remain poor, contact the telephone company to have the line tested.

3.Be sure an incoming call is not breaking the connection due to call waiting. Disable call waiting, and then reestablish the connection.

AT command initialization string is not working

Action: Use the most basic string possible to perform the task. The default initialization string is AT&F&C1&D2&K3.

Connection errors are occurring

Action:

1.Check the maximum baud rate for the modem to which you are connecting, and then change the baud rate to match.

2.If the line you are accessing requires error control to be turned off, do so using the AT command

AT&Q6%C0.

3.Be sure no line interference exists. Retry the connection by dialing the number several times. If conditions remain poor, contact the telephone company to have the line tested.

4.Be sure the modem is current and compliant with CCITT and Bell standards. Replace with a supported modem if needed.

You are unable to connect to an online subscription service

Action:

1.If the line you are accessing requires error control to be turned off, do so using the AT command

AT&Q6%C0.

2.If the ISP you are accessing requires access at a decreased baud rate, reconfigure the communications software to correct the connection baud rate to match the ISP.

3.If this does not work, force a slower baud rate (14400 baud) with the AT command AT&Q6N0S37=11.

You are unable to connect at 56 Kbps

Action:

1.Find out the maximum baud rate at which the ISP connects, and change the settings to reflect this. Reattempt to connect at a lower baud rate.

2.Be sure no line interference exists. Retry the connection by dialing the number several times. If conditions remain poor, contact the telephone company to have the line tested.

Network controller problems

Network controller is installed but not working

Action:

1.Check the network controller LEDs to see if any statuses indicate the source of the problem. For LED information, refer to the network controller documentation.

2.Be sure no loose connections (on page 58) exist.

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Contents HP ProLiant ML100 Series Server User Guide Page Contents Troubleshooting Support and other resources 103 Power up the server Power down the serverServer operations Optimum environment Server setupOptional installation services Rack planning resourcesTemperature requirements Power requirements Rack warningsElectrical grounding requirements Registering the server Installing hardware optionsPowering up and configuring the server Installing the operating systemProcessor option Hardware options installationAccess panel IntroductionHardware options installation Hardware options installation Hardware options installation Hardware options installation Hardware options installation Hardware options installation Hardware options installation Hardware options installation SAS or Sata hard drive options Remove the hard drive blank Prepare the hard drive Hard drive LED cable option Installing the LED cable ML110 G4 Hardware options installation Hardware options installation Installing the LED cable ML150 G3 Hardware options installation Connector locations ML110 G5, ML115 G5, and ML150 G5 Installing the LED cable ML110 G5, ML115 G5, and ML150 G5Hardware options installation Hardware options installation HP Smart Array E200 controller card Hardware options installation Removable media device options Installing media devices with railsInstalling media devices with screws Hardware options installation Installing media devices with a media latch Installing a half-height media device Installing media devices with wire retainersInstalling a full-height media device Hardware options installation Interleaving and non-interleaving memory configuration Installing DIMMsMemory options Expansion board options Installing an expansion board with a single retainerHardware options installation Installing an expansion board with individual retainers Installing an expansion board with an external retainer Hardware options installation Hardware options installation Keeping the system current Server software and configuration utilitiesHP Insight Diagnostics ROMPaq utilityHP Integrated Lights-Out Virtual Floppy and CD-ROM drives Embedded Sata RAID featureRequired hardware Diskette and CD-ROM drive optionsConfiguring the Sata RAID feature Enabling Sata RAID functionality in the Bios Setup UtilityProLiant ML110 Generation 3 Server ProLiant ML150 Generation 5 Servers ProLiant ML115 and ML115 G5 Servers Creating a RAID volumeDOS USB diskette and CD-ROM drivesInstalling an operating system Installing a supported Microsoft Windows OSInstalling a supported Linux or NetWare OS Important safety information TroubleshootingPre-diagnostic steps Important safety informationTroubleshooting Preparing the server for diagnosis Symptom informationCommon problem resolution Service notifications Firmware updatesLoose connections Scsi hard drive guidelines Dimm handling guidelinesHard drive guidelines SAS and Sata hard drive guidelinesSAS and Sata hard drive LED combinations Hot-plug Scsi hard drive LED combinationsStart diagnosis flowchart Troubleshooting flowchartsSee General diagnosis flowchartGeneral memory problems are occurring on Power-on problems flowchart Support CD, or the HP website Post problems flowchart Symptom information on OS boot problems flowchart Server fault indications flowchart Support CD, or the HP website Hardware problems UPS problems Power problemsPower source problems Power supply problemsOne or more LEDs on the UPS is red General hardware problemsProblems with new hardware Low battery warning is displayedUnknown problem Testing the device Internal system problemsThird-party device problems CD-ROM and DVD drive problemsDAT drive problems Drive is not detectedDAT drive is providing poor performance Diskette drive problems DLT drive does not read tape DLT drive problemsServer cannot write to tape DLT drive failure occursGeneral fan problems are occurring Fan problemsHard drive problems An error occurs during backup, but the backup is completedNew hard drive is not recognized Data is inaccessibleNo hard drives are recognized Hard drive is not recognized by the serverServer response time is slower than usual Memory problemsGeneral memory problems are occurring Memory count error existsServer fails to recognize new memory PPM problemsProcessor problems Server fails to recognize existing memoryExternal device problems Video problemsSystem open circuits and short circuits Audio problems Video colors are wrongSlow-moving horizontal lines are displayed Printer problems Mouse and keyboard problemsModem problems Modem does not connect to another modem No response occurs when you type AT commandsAT commands are not visible Modem does not answer an incoming callNetwork controller problems Network controller has stopped working Operating system problems Software problemsOperating system updates When to reconfigure or reload softwareRestoring to a backed-up version Linux operating systems Application software problems Firmware maintenanceSystem ROM Automatic backupTypes of ROM ROMPaq utility diskette or USB drive keyCurrent firmware versions ROMPaq Disaster RecoveryUpdating firmware Battery replacement Regulatory compliance notices Regulatory compliance identification numbersFederal Communications Commission notice Modifications CablesCanadian notice Avis Canadien European Union regulatory notice Japanese notice Bsmi notice Korean notice Battery replacement notice Taiwan battery recycling noticeLaser compliance Regulatory compliance notices Electrostatic discharge Preventing electrostatic dischargeGrounding methods to prevent electrostatic discharge Customer Self Repair Support and other resourcesBefore you contact HP HP contact informationRéparation par le client CSR Riparazione da parte del cliente Reparaciones del propio cliente Reparo feito pelo cliente Support and other resources Support and other resources Support and other resources Acronyms and abbreviations LO100PCI Express PDU Documentation feedback Index Installing operating system Temperature requirements