Visio-network troubleshooting.vsd
Contents
1. sites it s a PAC setting problem connection Possibly a faulty network card Try a different port or replace the patch leads Verify all lights are Go to the CD simultaneously gt flashing quickly and gt Turn the switches off and on and wait a few minutes to see if the broadcast storm starts again If the problem persists go to Step 2 Backbone Troubleshooting Backbone Troubleshooting Determine which BD the loop is coming from gt 7 First identify each of the backbone links Unplug one backbone lead z gt from the patch panel If fibre take note of the orientation Do the switch lights revert to normal NETWORK BRIDGE LOOP TROUBLESHOOTING FLOWCHART Switch Troubleshooting One at a time remove a patch lead from the switch switch lights revert Are there anymore backbone links Reconnect the backbone Follow the lead to find where the other end plugs in Do the to normal Stu Hasic 2006 Reconnect the lead into the same port and remove the next lead from the switch lead and move onto the next backbone link Is it in the patch panel PP or switch S From the port number on the path panel find the outlet in the room office The problem is either the outlet is connected to another outlet2. PROBLEM The internet is not accessible on a workstation You need to make sure the network cable is plugged in and that the appropriate TCP IP NO settings have been defined for local IP Address Gateway Router and DNS Check the power on the router computer that CAN Check it s connected to the hub normally access the internet switch and that both connection try to PING the router lights are active Switch it off and 10 xx xx 1 does i on and wait 10 minutes Check the hubs switches on your LAN Are things like OASIS working Consider your location How does your PC s connection get back to the router Has this PC ever accessed the internet before and is the network cable plugged in At the same point in time can you access the internet from other computers YES Local Network WAN or Router Problem Workstation Problem There is usually a light at the port where the network lead joins Is there a light on the PC Another light should be where the network cable plugs on the hub where the port into the PC and on the connects Try a different port amp hub switch port patch lead ones you know work You are sure that the You need to take some time and problem is definitely verify whether all PCs are occurring on ALL affected or whether it s only computers some Perhaps the problem is with a particular switch or hub on the network that the PC is connecte
3. d to SCHOOL INTERNET ACCESS TROUBLESHOOTING FLOWCHART v2 0 Verify the TCP IP settings There should be a unique local address Are the TCP IP for each computer while all other settings defined correctly on IP settings i e Gateway Router the PC Local Address and DNS addresses must be the Gateway DNS same on all computers Wait ten The problem lies beyond your minutes and then school with the Internet try access the internet Service Provider You should again Does it call the Helpdesk to report it The Helpdesk number is 1800 338 483 YES Developed by Stuart Hasic Technology Adviser Sydney Region Every workstation must have the school s auto proxy defined in the internet browser s I E or NO Netscape options or preferences screen eg http pac schools nsw edu au schools schoolid pac now work Is the PAC file auto proxy correctly defined in the browser Check the spelling YES YES If you can ping the router then the problem is in your browser It was probably a period YES _ Verify the PAC file setting Check ot uowntime that wastotally out of your control But it s If other computers can access the internet the problem is with that computer or its network NO Ping the router s IP address 10 xx xxx 1 do you get a reply the spelling Try access the site http detwww det nsw edu au fixed now so surf away If you can but can t get to other
4. or there is a switch in the room with a loop Go to that BD and start the Switch Troubleshooting process there The loop is on the other side of that backbone Reconnect the backbone lead The problem is coming from the CD switches Start the Switch Troubleshooting process in the CD Did the lights go normal on the other switch Is it in the exact same switch The loop problem is on that second switch Remove the patch lead The problem should be solved Remove the patch lead The problem should be solved Reconnect the lead into the same port and start the Switch Troubleshooting process on that switch
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