Sophos connect client deploy via gpo

I've followed the guide to deploy Sophos client connect vai gpo but unfortunately it isn't installing.

Firstly, I needed to tick to deploy "Ignore language when deploying this package" under advanced in the deployment tab and also to set a couple of other group policies.

Computer Settings > Policies > Administrative Templates > System > Logon > "Always wait for the network at computer startup and logon" set to enabled

Computer Settings > Administrative Templates > System > Group Policy > "Startup policy processing wait time" set to 120 seconds

I've now getting an error of %%1605, which relates to a general error. I've enabled verbose logging but it doesn't mean much to me, does anyone understand what the problem is from this log?

=== Verbose logging started: 25/01/2021  11:51:19  Build type: SHIP UNICODE 5.00.10011.00  Calling process: C:\WINDOWS\system32\svchost.exe ===
MSI (c) (8C:5C) [11:51:19:848]: User policy value 'DisableRollback' is 0
MSI (c) (8C:5C) [11:51:19:848]: Machine policy value 'DisableRollback' is 0
MSI (c) (8C:5C) [11:51:19:848]: Backup folder is created by user
MSI (c) (8C:5C) [11:51:19:864]: Note: 1: 2318 2:  
MSI (c) (8C:5C) [11:51:19:864]: Note: 1: 2318 2:  
MSI (c) (8C:5C) [11:51:19:864]: Note: 1: 1402 2: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\Rollback\Scripts 3: 2 
MSI (c) (8C:5C) [11:51:19:879]: Executing op: Header(Signature=1397708873,Version=500,Timestamp=1379226621,LangId=1028,Platform=0,ScriptType=3,ScriptMajorVersion=21,ScriptMinorVersion=4,ScriptAttributes=0)
MSI (c) (8C:5C) [11:51:19:879]: Executing op: ProductInfo(ProductKey={A8E393E5-94C5-495A-A616-964078E9BD5D},ProductName=Sophos Connect,PackageName=SophosConnect_2.0_(IPsec_and_SSLVPN).msi,Language=1028,Version=33554466,Assignment=1,ObsoleteArg=0,ProductIcon=icon.ico,,PackageCode={C62FE202-58FD-4C8F-AA2D-A6216DE60E36},,,InstanceType=0,LUASetting=0,RemoteURTInstalls=0,ProductDeploymentFlags=3)
MSI (c) (8C:5C) [11:51:19:879]: Executing op: DialogInfo(Type=0,Argument=1028)
MSI (c) (8C:5C) [11:51:19:879]: Executing op: DialogInfo(Type=1,Argument=Sophos Connect)
MSI (c) (8C:5C) [11:51:19:879]: Executing op: RollbackInfo(,RollbackAction=Rollback,RollbackDescription=復原動作:,RollbackTemplate=[1],CleanupAction=RollbackCleanup,CleanupDescription=移除備份檔案,CleanupTemplate=檔案: [1])
MSI (c) (8C:5C) [11:51:19:879]: Executing op: ActionStart(Name=CreateShortcuts,Description=建立捷徑,Template=捷徑: [1])
MSI (c) (8C:5C) [11:51:19:879]: Executing op: IconCreate(Icon=icon.ico,Data=BinaryData)
MSI (c) (8C:5C) [11:51:19:879]: Executing op: ActionStart(Name=PublishFeatures,Description=發佈產品功能,Template=功能: [1])
MSI (c) (8C:5C) [11:51:19:879]: Executing op: FeaturePublish(Feature=ProductFeature,,Absent=0,)
MSI (c) (8C:5C) [11:51:19:879]: Executing op: ActionStart(Name=PublishProduct,Description=正在發佈產品資訊,)
MSI (c) (8C:5C) [11:51:19:879]: Executing op: CleanupConfigData()
MSI (c) (8C:5C) [11:51:19:895]: Note: 1: 1402 2: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\5E393E8A5C49A5946A616904879EDBD5\Patches 3: 2 
MSI (c) (8C:5C) [11:51:19:895]: Executing op: ProductPublish(PackageKey={C62FE202-58FD-4C8F-AA2D-A6216DE60E36})
MSI (c) (8C:5C) [11:51:19:895]: Note: 1: 1402 2: UNKNOWN\Installer\Products\5E393E8A5C49A5946A616904879EDBD5 3: 2 
MSI (c) (8C:5C) [11:51:19:895]: Note: 1: 1402 2: UNKNOWN\Installer\Products\5E393E8A5C49A5946A616904879EDBD5 3: 2 
MSI (c) (8C:5C) [11:51:19:895]: Note: 1: 1402 2: UNKNOWN\Installer\Products\5E393E8A5C49A5946A616904879EDBD5 3: 2 
MSI (c) (8C:5C) [11:51:19:895]: Note: 1: 1402 2: UNKNOWN\Installer\Products\5E393E8A5C49A5946A616904879EDBD5 3: 2 
MSI (c) (8C:5C) [11:51:19:895]: Note: 1: 1402 2: UNKNOWN\Installer\Products\5E393E8A5C49A5946A616904879EDBD5 3: 2 
MSI (c) (8C:5C) [11:51:19:895]: Note: 1: 1402 2: UNKNOWN\Installer\Products\5E393E8A5C49A5946A616904879EDBD5 3: 2 
MSI (c) (8C:5C) [11:51:19:895]: Note: 1: 1402 2: UNKNOWN\Installer\Products\5E393E8A5C49A5946A616904879EDBD5 3: 2 
MSI (c) (8C:5C) [11:51:19:895]: Note: 1: 1402 2: UNKNOWN\Installer\Products\5E393E8A5C49A5946A616904879EDBD5 3: 2 
MSI (c) (8C:5C) [11:51:19:895]: Note: 1: 1402 2: UNKNOWN\Installer\Products\5E393E8A5C49A5946A616904879EDBD5 3: 2 
MSI (c) (8C:5C) [11:51:19:895]: Note: 1: 1402 2: UNKNOWN\Installer\Products\5E393E8A5C49A5946A616904879EDBD5 3: 2 
MSI (c) (8C:5C) [11:51:19:895]: Note: 1: 1402 2: UNKNOWN\Installer\Products\5E393E8A5C49A5946A616904879EDBD5 3: 2 
MSI (c) (8C:5C) [11:51:19:895]: Executing op: UpgradeCodePublish(UpgradeCode={5A9E3376-BF41-425C-B0E8-318388686A58})
MSI (c) (8C:5C) [11:51:19:895]: Executing op: SourceListPublish(,,,,NumberOfDisks=1)
MSI (c) (8C:5C) [11:51:19:895]: Note: 1: 1402 2: UNKNOWN\Installer\Products\5E393E8A5C49A5946A616904879EDBD5\SourceList 3: 2 
MSI (c) (8C:5C) [11:51:19:895]: Executing op: ProductPublishClient(,,)
MSI (c) (8C:5C) [11:51:19:895]: Executing op: End(Checksum=0,ProgressTotalHDWord=0,ProgressTotalLDWord=0)
MSI (c) (8C:5C) [11:51:19:911]: DoAdvertiseScript is returning: 0
=== Verbose logging stopped: 25/01/2021  11:51:19 ===

With most of my workforce working from home, having the VPN client install through gpo rather than having to do it manually would be much preferred.