Crashplan for Dummies, aka Step by Step :)

Hi. Great guide and I'm almost there (I think) but I'm having a bit of a problem connecting to CrashPlan when trying to configure the NAS. When I fire up the desktop client without any modifications to ui.properties on the desktop PC, it will log into CrashPlan fine. However, whenever I change the service port to 4200 and do the tunnel through Putty, the desktop client will fail when trying to log into CrashPlan (tells me that the credential are wrong or that I need to check my network). When trying to login, this is what appears in the logs on the NAS:

[12.17.13 13:08:24.720 INFO    MQ-UI-1              com.backup42.service.ui.UIController    ] UserActionRequest: CommandMessage[force.idle] 
[12.17.13 13:08:24.721 INFO    MQ-UI-1              backup42.service.backup.BackupController] UI:: FORCE IDLE... highBandwidth=38400 B/s, idleThrottleRate=80
[12.17.13 13:08:24.722 INFO    MQ-UI-1              com.backup42.common.command.CliExecutor ] RUN COMMAND: force.idle  >  CommandResult@16684815[ force.idle, success=true, result=null ]
[12.17.13 13:08:24.809 INFO    MQ-UI-0              com.backup42.service.ui.UIController    ] UserActionRequest: LoginRequestMessage[614978997790966052] LOGIN: username=**@********.com, password=****, serverAddress=null
[12.17.13 13:08:24.810 INFO    MQ-UI-0              com.backup42.service.peer.Authorizer    ] AUTH:: LOGIN; waitTime=60000
[12.17.13 13:08:24.811 INFO    W7342891_Authorizer  com.backup42.service.peer.Authorizer    ] AUTH:: *** START *** with Authorizer@8067341[ LOGIN, username=**@********.com, password=true]
[12.17.13 13:08:24.811 INFO    W7342891_Authorizer  com.backup42.service.peer.Authorizer    ] AUTH:: Authority address: central.crashplan.com/216.17.8.55
[12.17.13 13:08:24.811 INFO    W7342891_Authorizer  com.backup42.service.peer.Authorizer    ] AUTH:: Getting auth rules. CPCAuthRulesRequestMessage@27909413[ login=true, username=**@********.com, registrationKey= ]
[12.17.13 13:08:25.317 INFO    W7342891_Authorizer  com.backup42.service.peer.Authorizer    ] AUTH:: AuthorizeRules [hashPassword=true, ldap=false, minPasswordLength=5, usernameIsAnEmail=true, deferredAllowed=false]
[12.17.13 13:08:25.352 INFO    W7342891_Authorizer  com.backup42.service.peer.Authorizer    ] AUTH:: CPCLoginMessage@-20032594[ guid=614830029668876580, productVersion=3.5.3, username=**@********.com, password=true, register=false, registrationKey=, orgType=CONSUMER, computerType=COMPUTER, address=192.168.1.36:4242, computerName = dchob-nas001, dataKeyChecksum = 1e3f61199467af9c7c3227ff39529c70, configDate=null, socialNetworkDate=0 ]
[12.17.13 13:08:25.749 INFO    W7342891_Authorizer  com.backup42.service.peer.Authorizer    ] AUTH:: CPCLoginResponseMessage@122249785[remoteId=136962048763636368, session=614979033509658916, remoteGuid=42, errors=Login.FAILED] 
[12.17.13 13:08:25.749 INFO    W7342891_Authorizer  com.backup42.service.peer.Authorizer    ] AUTH:: Error = CPErrors.Login.FAILED : []
[12.17.13 13:08:25.751 INFO    W7342891_Authorizer  com.backup42.service.ui.UIController    ] UserActionResponse: LoginResponseMessage@3916813[ session=614978997790966052, errors=[CPErrors.Login.FAILED : []] ]{}
[12.17.13 13:08:25.752 INFO    W7342891_Authorizer  com.backup42.service.peer.Authorizer    ] AUTH:: *** END *** Failed after 942ms