Enterasys RoamAbout RBT-4102 - Appendix B: Troubleshooting; Troubleshooting Steps

RoamAbout RBT-4102 Wireless Access Point Configuration Guide B-1
B
Troubleshooting
Troubleshooting Steps
Checkthefollowingitemsbeforecontactingtechnicalsupport.
1. Ifwirelessclientscannotaccessthenetwork,checkthefollowing:
a. BesuretheaccesspointandthewirelessclientsareconfiguredwiththesameServiceSet
ID(SSID).
b. Ifauthenticationorencryptionareenabled,ensurethatthewirelessclientsareproperly
configuredwiththe
appropriateauthenticationorencryptionkeys.
c. IfauthenticationisbeingperformedthroughaRADIUSserver,ensurethattheclientsare
properlyconfiguredontheRADIUSserver.
d. IfauthenticationisbeingperformedthroughIEEE802.1x,besurethewirelessusershave
installedandproperlyconfigured802.1xclientsoftware.
e. IfMACaddressfilteringisenabled,
besuretheclient’saddressisincludedinthelocal
filteringdatabaseorontheRADIUSserverdatabase.
f. Ifthewirelessclientsareroamingbetweenaccesspoints,makesurethatalltheaccess
pointsandwirelessdevicesintheExtendedServiceSet(ESS)areconfiguredtothesame
SSID,andauthentication
method.
2. IftheaccesspointcannotbeconfiguredusingTelnet,a Webbrowser,orSNMPsoftware:
a. BesuretohaveconfiguredtheaccesspointwithavalidIPaddress,subnetmaskand
defaultgateway.
b. IfVLANsareenabledontheaccesspoint,themanagementstationshouldbeconfigured
tosendtaggedframes
withaVLANIDthatmatchestheaccesspoint’snativeVLAN
(“RadioInterface”(page 4‐55)).However,tomanagetheaccesspointfromawireless
client,theAPManagementFiltershouldbedisabled(Referto“FilterControland
VLANs”onpage 4‐17.)
c. Checkthatyouhaveavalidnetworkconnection
totheaccesspointandthattheEthernet
portorthewirelessinterfacethatyouareusinghasnotbeendisabled.
d. IfyouareconnectingtotheaccesspointthroughthewiredEthernetinterface,checkthe
networkcablingbetweenthemanagementstationandtheaccesspoint.Ifyouare
connectingto
theaccesspointfromawirelessclient,ensurethatyouhaveavalid
connectiontotheaccesspoint.
e. Ifyoucannotconnectusing Telnet,youmayhaveexceededthemaximumnumberof
concurrentTelnetsessionspermitted(i.e,foursessions).Tryconnectingagainatalater
time.