Cannot log on to two instances of IBM Spectrum Control by using the same browser

You cannot log on to two instances of IBM Spectrum Control by using the same browser.

Problem

When you try to log on to more than one instance of IBM Spectrum Control by adding a tab or opening a new window in a browser, you are logged out of the first instance. This situation occurs because the Lightweight Third-Party Authentication (LTPA) cookie that is set by the first server (TPC_server1) is being overwritten by the LPTA cookie that is set by the second server (TPC_ server2).

Action

To avoid this issue, take one of the following actions:

Use different web browsers to log on to the different servers. For example, you can log on to one instance on Internet Explorer and the second instance by using Mozilla Firefox.
If you are using single sign-on, make sure the Jazz for Service Management servers are configured with the same LDAP information. By configuring the second authentication service to use the same LTPA keys as the first server, the LTPA cookies do not overwrite each other.
If you are not using single sign-on, configure the LTPA cookies on each server to use the fully qualified host name of the server instead of only the parent domain name. Complete the following steps for each server to configure the domain name:
1. Log on to the IBM Spectrum® Control server with administrative privileges.
2. Open a command prompt and go to installation_dir/wlp/usr/servers/webServer directory.
3. Edit the server.xml file and change this line:
```
<webAppSecurity ssoUseDomainFromURL="true" />
```
  to:
```
<webAppSecurity ssoDomainNames="<fully qualified host name of 
IBM Spectrum Control server>" />
```
4. Save and exit the server.xml file.
Because the servers are now identified by their fully qualified host names, an LTPA cookie that is set by one server does not overwrite an LTPA cookie that is set by the other server.