# How to update License key for wowza streaming engine?
**URL:** https://community.wowza.com/t/how-to-update-license-key-for-wowza-streaming-engine/54067
**Category:** Wowza Streaming Engine
**Created:** [October 14, 2019, 8:05am UTC](https://community.wowza.com/t/how-to-update-license-key-for-wowza-streaming-engine/54067 "2019-10-14T08:05:34Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@K\_B](https://community.wowza.com/u/K_B)
#### Post date: [October 14, 2019, 8:05am UTC](https://community.wowza.com/t/how-to-update-license-key-for-wowza-streaming-engine/54067/1 "2019-10-14T08:05:34Z")
How to update License key for wowza streaming engine, can you provide steps or documentation for the same?
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### Author:  [@David\_Jeson](https://community.wowza.com/u/David_Jeson)
#### Post date: [October 15, 2019, 11:17am UTC](https://community.wowza.com/t/how-to-update-license-key-for-wowza-streaming-engine/54067/2 "2019-10-15T11:17:31Z")
sure you can renew your Wowza streaming license key.
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### Author:  [@muthu\_kumaran](https://community.wowza.com/u/muthu_kumaran)
#### Post date: [August 7, 2020, 2:04pm UTC](https://community.wowza.com/t/how-to-update-license-key-for-wowza-streaming-engine/54067/3 "2020-08-07T14:04:25Z")
we are go live test streaming
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### Author:  [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)
#### Post date: [August 7, 2020, 2:12pm UTC](https://community.wowza.com/t/how-to-update-license-key-for-wowza-streaming-engine/54067/4 "2020-08-07T14:12:25Z")
You can replace the existing license key with the new license key @muthu kumaran:
To add or change license keys in Wowza Streaming Engine Manager, do the following:
1. Click the **Server** tab, and then click **Server Setup** in the contents panel.
2. On the **Server Setup** page, click **Edit**.
3. In the **License Keys** box, enter your license key for Wowza Streaming Engine. If you need to enter multiple license keys, enter each license key on a separate line.
4. Click **Save** , and then click **Restart Now** at the top of the **Server Setup** page when prompted. The new license(s) take effect after the server is restarted.
[https://www.wowza.com/docs/how-to-get-started-as-a-wowza-streaming-engine-manager-administrator#add-license-keys](https://www.wowza.com/docs/how-to-get-started-as-a-wowza-streaming-engine-manager-administrator#add-license-keys)
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### Author:  [@Ayush\_Chauhan](https://community.wowza.com/u/Ayush_Chauhan)
#### Post date: [October 22, 2020, 6:23am UTC](https://community.wowza.com/t/how-to-update-license-key-for-wowza-streaming-engine/54067/5 "2020-10-22T06:23:58Z")
Hi @Rose_Power-Wowza_Com,
What if we have forgot the server password(on the streaming engine page )?
If I try to change the admin.password file in [install-dir]/WowzaStreamingEngine/conf/ folder and then try to restart the server, I am getting below error.
> Bind attempt ([any]:8087)
> WARN server comment - LicenseUpdateServer: Bind failed, try again ([any]:8087): java.net.BindException: Address already in use|at java.base/sun.nio.ch.Net.bind0(Native Method)|at java.base/sun.nio.ch.Net.bind(Unknown Source)|at java.base/sun.nio.ch.Net.bind(Unknown Source)|at java.base/sun.nio.ch.ServerSocketChannelImpl.bind(Unknown Source)|at java.base/sun.nio.ch.ServerSocketAdaptor.bind(Unknown Source)|at org.simpleframework.transport.connect.SocketAcceptor.bind(SocketAcceptor.java:183)|at org.simpleframework.transport.connect.SocketAcceptor.(SocketAcceptor.java:100)|at org.simpleframework.transport.connect.SocketListener.(SocketListener.java:81)|at org.simpleframework.transport.connect.SocketListenerManager.listen(SocketListenerManager.java:98)|at org.simpleframework.transport.connect.SocketListenerManager.listen(SocketListenerManager.java:81)|at org.simpleframework.transport.connect.SocketConnection.connect(SocketConnection.java:106)|at org.restlet.ext.simple.HttpServerHelper.start(HttpServerHelper.java:92)|at org.restlet.Server.start(Server.java:579)|at org.restlet.Component.startServers(Component.java:642)
How to fix this error?
Thanks