Before performing the SIPStation password reset, make sure that you have access to your PBX and have disabled your SIPStation trunks.
To disable your trunks, go to the Trunks module and edit each SIPStation trunk (you will see at least 2).
There you will find the option to disable your trunks.
After completing the steps below to enter a new key, remember to go back to the trunks module and confirm they are no longer disabled.
once logged on click on My Account
this opens a page called my services , click on Trunk Groups
finally from the account configuration tab select Reset SIP Password
Once the above steps have been taken copy the new FreePBX Module Keycode and proceed to your PBX
From your PBX navigate to the SIPStation module
once in the SIPStation module select remove key
once the existing key has been removed add the new key generated , click "Add Key" and finally apply config ...
After the apply config has completed both trunks will show successfully registered with the updated SIP password