5100b modem troubleshooting

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Modem Troubleshooting

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Page 1: 5100B Modem Troubleshooting

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5100B Modem

Page 2: 5100B Modem Troubleshooting

5100B Modem

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Difference b/w 5100A and 5100B

5100A modems have 4 lights whereas 5100B modems have 5 lights

5100A 5100B

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What are the lights and what do they mean?

Power:

Green - Modem has power and passed the POST test.

Off - No power to modem.

Flashing Red - POST test in progress, or firmware update in process

Red - POST failed.

Ethernet:

Green - Connection through the Ethernet port to the router or computer was successful.

Off - No power, or connection through the Ethernet port to the router or computer was not successful.

DSL:

Green - Modem is in synch (N Sync?)

Off - No power.

Flashing Green - Modem is synching with DSLAM

Flashing Red/Green - Modem unable to synch after 3 minutes and is still attempting to synch.

Flashing Red - No synch found.

Activity:

Off - No power, or no activity

Flashing Green - Activity with modem.

Internet (5100b only):

Green - PPPoE connection established.

Red - POST failed

Off - No power to modem, modem is in bridge mode, or PPPoE connection has not been established.

Flashing Red - POST test in progress, or firmware update in process

Page 7: 5100B Modem Troubleshooting

5100B GUI’s snapshot

To access the GUI of 5100B, open Internet Explorer, put address as http://192.168.0.1, if the member is connected member will view a screen like this:

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•Click on Disconnect. Then member will see a Login Screen

•Member must enter his primary username and password in this screen.

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Status of DSL

User ID with which member is connected

Speed of DSL

Status of DSL

PPP Location

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• “Check Connection” provides result of various test, executed on various levels.

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• Advance tab provides with various sub-tabs, like Connection Configuration, PPP Location, Reset modem and update modem for specific tasks.

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User ID and Password with which member is connected

VP and VC settings

Protocol type used by member

Maximum Transmission Unit (MTU) should always be greater than zero

Connection Type should always be “Smart keep alive” and Connection Timeout field should always be “blank”

Checked, if modem is configured for NAT IPs

Checked, if modem receives IP address from DHCP Server

Always uncheck and DHCP lease should always be 0days, 0 hours,0 minutes

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PPP Location description

PPP is on the modem: It is the default mode of 5100B modem. In this mode, the PPP session is initiate by the modem. If you want to allow the modem to authenticate for you; enter your SBC username and password. Then configure the router behind the modem to obtain a WAN or Internet IP address automatically. 

PPP is on the computer: This mode can be used in case member want to use a Router or a Gateway, which initiates the PPPoE session. Or in case PPPoE client runs on the computer. i.e. This is the best option if you have a firewall or router behind the modem and your ISP is using PPPOE as their connection method.

Bridge Mode: This option is used if your ISP uses a static IP address instead of a username and password.

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•This tab is used in case of Firmware update required for the modem.

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• To reset the modem, go to Reset Modem tab

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• These are the various screens used for the configuration of 5100B, to view the simulator of the GUI of 5100B modem, visit http://forums.ricknmiasworld.net/5100b/

or use

http://apps.sbcis.sbc.com/etools/visual/sims/hardware/modems/5100b/index.asp

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Common Issues On the

floor and

FAQ’s

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Error “Modem not Trained”Error “Modem not Trained”

• Check for the Due Date

• Status of DSL light, it should be Green

• Run BBT and Isolate tools to check the status of line. Also, check with the “ASI provisioning deptt.” whether line is activated or not.

• If lines are perfect then, Reset the modem.

• ipconfig /release

• ipconfig /renew

• Try to visit http://192.168.0.1.

• If the problem still persist, escalate to STS

Page 21: 5100B Modem Troubleshooting

Error “Modem Not found”Error “Modem Not found”

• In Device Manager, check whether NIC drivers are properly install, also, NIC is enable.

• Check all cables and filters.

• Delete all existing PPPoE connections, in case of Windows XP. And if it Windows 98, Me or 2000, delete all the profiles of Enternet300.Also, delete all the Dial-up connections.

• Inspect the modem lights. The Power, Ethernet, and DSL LEDs should all be steady Green.

• If Ethernet light is not green, then, Ask the Member to remove the Yellow Ethernet cable from the modem for about 10 seconds and re-insert it back into the modem's Yellow Ethernet jack. The Ethernet LED should illuminate Green upon re-plugging.

Continued>>Continued>>

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Error “Modem Not found”Error “Modem Not found”

• Ask the Member to open a web browser (i.e., Internet Explorer) and navigate to the following URL: http://192.168.0.1/

• And if they can see the modem GUI screen then close the browser window and proceed with the installation Ensure the Member closes out and exits the installer screen. Ask the Member to restart the SBC Yahoo! DSL 5.0 Installation process by ejecting the CD and then reinserting the CD. For Installation, Disable all anti-virus software, and pop-up blockers etc.

• But the Member cannot see the modem GUI then see the troubleshooting for “Unable to pull GUI”

For further help, visit: https://agentsupport.sbcglobal.net/tier1/sbc/ydsl/hardware/modemrouter/6110.shtml

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Slow Browse/ConnectionSlow Browse/Connection

• If member is facing problem with slow browse, ask member to Click on Start>>Run.

• Type cmd in Windows 2000/XP or command in Windows 98/98SE/ME. Click OK.

• Type ipconfig in Windows 200/XP or winipcfg in Windows 98/98SE/ME and Press Enter.

• If IP address is not like 192.x.x.x, then uninstall SST. Reset modem. And configure the modem again.

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Slow ConnectionSlow Connection

•If member is RT based member, then perform the troubleshooting as per the call flow and then, ask member to upgrade for the new firmware. To upgrade the firmware, call will be escalated to STS.

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Authentication ErrorAuthentication Error

• Run BBT and Isolate.

• Check in MPS/LDAP tool. Any data field except password highlighted in yellow color, escalate this call to STS.

• If Password data field is highlighted then reset the password using CRM.

• If lines are perfect, then ask the member, if he had recently changed his password.

• If yes, then go to http://192.168.0.1 and change the password in “Connection Configuration” tab. And Click on “Save Changes”

• Also, check whether the member is a legacy, migrated or day-one member, and put the username accordingly.

• And follow the Authentication Call flow accordingly.

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Unable to pull GUIUnable to pull GUI• Check for the cabling and filters.

• Delete Temporary Internet files, Clear cookies, clear cache.

• ping 192.168.0.1. If pinging is successful then check for the firewall and antivirus install on the PC

• If unable to ping 192.168.0.1, then check for the NIC, if NIC drivers are properly install or NIC is enable.

• Click on Start>>Run.

• Type cmd in Windows 2000/XP or command in Windows 98/98SE/ME. Click OK.

• Type ipconfig /all in Windows 200/XP or winipcfg /all in Windows 98/98SE/ME and Press Enter.

Continued>>

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Unable to pull GUIUnable to pull GUI

• Check DHCP, it should be 192.168.0.1

• Check DNS, it should be 192.168.0.1

• Check the IP address

• Default Gateway, should be 192.168.0.1

• ipconfig /release

• ipconfig /renew

• If still problem persist, then Reset the modem and try to visit http://192.168.0.1.

• If still problem persist, then Escalate to STS.

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How do I setup the 5100b to connect to the How do I setup the 5100b to connect to the internet? internet?

• In your web browser browse to »192.168.0.1 This address will be located on a yellow sticker on the bottom of your modem.

• The first screen will ask you for your Modem Access Code. This also will be located on the same yellow sticker.

• At the login screen type in your SBC member ID and password. If member is not registered the use Generic ID i.e. sbcyahooreg.sbcglobal.net and sbcyahooreg.

• Click Connect.

• If everything is successful you will get a screen that says, "You Are Connected." and your Internet light will go solid green. If you username or password is invalid you will get a screen stating such. If there are other problems you will get a screen stating, "The DSL connection is down."

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Why doesn't my Router work with the Why doesn't my Router work with the 5100B 5100B

• Routers with the default IP of 192.168.0.1 (example Netgear) conflict with the 5100B default of 192.168.0.1. The router has to be change, since the 5100B's cannot be change

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Can I change the default IP of Can I change the default IP of 192.168.0.1?192.168.0.1?

• No, the default IP of 5100B cannot be changed. If you want to use this modem with router, then you have to change the IP of the Router, but it is not possible to change the IP of 5100B now. Maybe it became possible with future software upgrades.

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Frequent DisconnectionFrequent Disconnection

•Member get disconnected as soon as he connects, or member gets disconnected after a certain period of time.

•Check for the Due Date

•Status of DSL light.

•If DSL light is red, when member gets disconnected, then follow the Intermittent sync call flow.

•If the DSL light is green, then check for the MTU setting, connection type, connection timeout and DHCP lease time setting.

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Maximum Transmission Unit (MTU) should always be greater than zero and default value is 1492

Connection Type should always be “Smart keep alive” and Connection Timeout field should always be “blank”

Always uncheck and DHCP lease should always be 0days, 0 hours,0 minutes

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Connected, but not able to browseConnected, but not able to browse

•Scenario – Lines are perfect. Member is able to ping 192.168.0.1, able to ping www.yahoo.com, also ipconfig provides the correct information for the DHCP, DNS, IP Address, and Gateway. No firewall is there. Still member is not able to browse.

•Resolution – Check for the username and password, member might be using generic username and password, i.e. [email protected]. Change it to the primary username and password of the member.

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Connected, but not able to browseConnected, but not able to browse

•Scenario – Lines are perfect. Member try to perform ipconfig /all, ipconfig /all provides the correct information for the DHCP, DNS, IP Address, but Gateway is 0.0.0.0 or any IP address but not 192.168.0.1.

•Resolution –

•ipconfig /release

•ipconfig /renew

•If still Gateway is 0.0.0.0, then Reset the modem and try to configure the modem again. If problem still persist, escalate this call to STS.