Error licensing 100GB iView

Hi,

I'm trying to set up a new install of iView and keep getting an activation error. I've updated the TZ symlink to reference my local timezone and then updated the clock using ntpclient -s -h 0.us.pool.ntp.org. Name resolution appears to work and XG has a policy to allow for unfiltered web access for iView.

I see the following in the licensing logs:

INFO Jun 14 14:38:00 [0]: --requestType = 1
INFO Jun 14 14:38:00 [0]: --serial = XXXXXXXXXX
INFO Jun 14 14:38:00 [0]: --deviceid = 5733ef28-1c08-4fc2-b09f-7fae3932094f
INFO Jun 14 14:38:00 [0]: --model = SIV
INFO Jun 14 14:38:00 [0]: --vendor = VM01
INFO Jun 14 14:38:00 [0]: --upgradeReqType = 1
INFO Jun 14 14:38:00 [0]: --upgradedFrom = 0
INFO Jun 14 14:38:00 [0]: --fwversion = 03.01.2.009
INFO Jun 14 14:38:00 [0]: --cert = /_conf/staticfiles/certificate/licensing/mfgr_vendor_VM.pem
INFO Jun 14 14:38:00 [0]: --token = Token-Id:SO-D5C052A8
INFO Jun 14 14:38:00 [0]: --key = /_conf/staticfiles/certificate/licensing/mfgr_vendor_VM.key
INFO Jun 14 14:38:00 [0]: URL : eu-prod-utm.soa.sophos.com/.../applianceactivation
INFO Jun 14 14:38:01 [0]: response : {"errorCode":"ITSERVICELAYER_CLIENT_AUTHENTICATION_ERROR", "message":"IIS error: HTTP 403.0 - Forbidden", "statusCode": 403}
ERROR Jun 14 14:38:01 [0]: Activation Failed...:)
ERROR Jun 14 14:38:01 [0]: licensing_do_activation() : parsing failed...

Any ideas as to what the issue might be? I saw the one workaround post for the missing CA cert for XG @ https://community.sophos.com/kb/en-us/132458. It didn't seem like it applied to iView. I'd appreciate any suggestions to try.

Thanks,

Kevin