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Appendix A: Configuring Security Settings on Wireless Clients
8. Click “Install this certificate” to install the newly issued certificate on your client
station. (Also, click “Yes” on the popup windows to confirm the install and to add the
certificate to the Root Store.)
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Appendix B. Troubleshooting
This section provides information about how to solve common problems you might
encounter in the course of updating network configurations on networks served by
multiple, clustered access points.
Cluster Recovery
In cases where the access points in a cluster become out of sync or an access point
cannot join or be removed from a cluster, the following methods for cluster recovery
are recommended.
Reboot or Reset Access Point
These recovery methods are given in the order you should try them. In all but the last
case (stop clustering), you only need to reset or reboot the particular access point whose
configuration is out of sync with other cluster members or cannot remove/join cluster.
• Reboot the access point from its Administration UI. To do this, go to
http://
IPAddressOfAccessPoint
, navigate to
Advanced > Reboot
and click the
Reboot
button.
(IP addresses for APs are on the Cluster > Access Points page for cluster members.)
• Physically reboot the access point by pressing the Power button on the device.
• Reset the access point from its Administration UI. To do this, go to
http://
IPAddressOfAccessPoint
, navigate to
Advanced > Reset
, and click the
Reset
button. (IP addresses for APs are on the Cluster > Access Points page for any cluster
member.)
• Physically reset the access point by pressing the Reset button on the device.
• In some extreme cases, reboot or reset may not solve the problem. In these cases,
follow the procedure described next in “Stop Clustering and Reset Each Access Point
in the Cluster” to recover every access point on the subnet.
Stop Clustering and Reset Each Access Point in the Cluster
If the previous reboot or reset methods do not solve the problem, do the following to
stop clustering and reset all APs.
1. Stop clustering on each access point in the cluster.
To do this, enter the Stop Clustering URL in the address bar of your Web browser as
follows:
http://
IPAddressOfAccessPoint
/stop_clustering.cgi
Where
IPAddressOfAccessPoint
is the IP address of the access point you want
to stop clustering. You can find the IP addresses for the cluster members on the Cluster
> Access Points page for any of the clustered access points. We recommend making
a note of all IP addresses at this point.
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Appendix B: Troubleshooting
The Stop Clustering page for this access point is displayed.
Click the
Stop Clustering
button.
Repeat this “stop clustering” step for every access point in the cluster.
Table 1:
Do not proceed to the next step of resetting any access points until you have stopped
clustering on all of them. Make sure that you first “Stop Clustering” on every access
point on the subnet, and only then perform the next part of the process of resetting
each one to the factory defaults.
2. Reset each access point.
To do this, go to the Administration Web pages of the access point you want to reset
by entering its URL into the address bar of your Web browser:
http://
IPAddressOfAccessPoint
/
Where
IPAddres0sOfAccessPoint
is the IP address of the access point you
want to reset.
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Appendix B: Troubleshooting
On the Administration UI left-hand tabs, click
Advanced > Reset
to bring up the Reset
page.
Click
Reset
to restore the factory defaults on the access point. (This will clear all of
your previous settings, including updated passwords.)
Repeat this “reset” step for every access point in the cluster.
Table 2:
Do not proceed to the next step until you have stopped clustering on all of access
points in the preexisting cluster.
3. Refresh the cluster view as follows.
On the Administration Web pages for any one of the access points, click
Cluster >
Access Points
to bring up the Access Points cluster management page and click the
Refresh
button.
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Appendix B: Troubleshooting
At this point you should see all previous cluster members displayed in the list.
Before proceeding to the last step, verify that the cluster has reformed by making
sure all are access points are listed.
4. Review all configuration settings and make modifications as needed.
Pay special attention to the security settings because after a reset, Access Points run
without any security in place.

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