Enterasys Networks RBTSA-AA, RBTSA-AB manual Troubleshooting

52CHAPTER 4: TROUBLESHOOTING

Table 15 Troubleshooting	(continued)
Symptom	Solution(s)
After you change the IP	If you change the IP address and click Apply, you
address, after you restore a	cannot continue to configure the device using the old
backup configuration, or after	IP address. Similarly, after you restore a backup
you reset the Ethernet	configuration or reset the Ethernet Adapter to factory
Adapter to factory defaults,	defaults, the IP address setting may be changed.
the Configuration	To recover from this situation and continue configuring
Management System stops
	the Ethernet Adapter:
responding and you cannot
	1
continue configuring the		Close your browser.
Ethernet Adapter.	2	Return to the Enterasys Networks Wireless
		Infrastructure Device Manager and click Refresh.
	3	Select the device and click Configure to start a new
		configuration session and set its IP address.
The Ethernet Adapter cannot	■	Adjust the position of the Ethernet Adapter to
associate with an access point.		improve reception.
	■	Launch the Ethernet Adapter Configuration
		Management System and make sure the security
		settings on the Ethernet Adapter match those on
		the access point.
The Wireless Network Tree does	Verify that you are using the correct network adapter.
not appear in the Enterasys	In the device manager window, click Choose NIC.
Networks Wireless Infrastructure	Select the network adapter for the network you want
Device Manager window.	to scan, and click OK.
The Ethernet Adapter has a	The Ethernet Adapter is on a different subnet than the
yellow exclamation point (!)	computer attempting to configure it.
next to it in the Wireless	To recover from this situation and continue configuring
Infrastructure Device
	the Ethernet Adapter:
Manager.
	1	Close your browser.
	2	Return to the Enterasys Networks Wireless
		Infrastructure Device Manager and click Refresh.
	3	Select the device and click Configure to start a new
		configuration session.
	4	Make sure the subnet address matches that of the
		computer.
Two Ethernet Adapters cannot	■	Adjust the positions of the Ethernet Adapters to improve
communicate in ad-hoc mode.		reception.
	■	To ensure correct operation in ad-hoc mode, the
		settings on the two Ethernet Adapters must match
		exactly. Launch the Ethernet Adapter Configuration

Management System and make sure that the Wireless LAN Service Area, channel selections, Data Preamble setting, and security setting are the same on both Ethernet Adapters.