Libraries won't sync to web

Hi - I am having issues getting my libraries to sync to the web. All of my libraries appear in my panel, however they never sync to the cloud, nor can I access them on other devices. Everytime I open a program it tries to sync them but it never gets under 1MB & eventually I get the 'We're experiencing server problems' error. This has been ongoing for about a month now. I have been working with our IT department to make sure we are not blocking anything. I can get to assets.adobe.com/libraries. Additionally, we aren't blocking any of these urls:

• ccmdls.adobe.com:443
• ims-prod06.adobelogin.com:443
• na1r.services.adobe.com:443
• prod-rel-ffc-ccm.oobesaas.adobe.com:443
• lm.licenses.adobe.com:443 !
• ccmdl.adobe.com:80
• swupmf.adobe.com:80
• swupdl.adobe.com:80

I have also checked: Adobe Status  several time and the cloud doesn't seem to be experiencing issues.

Any assistance is greatly appreciated.

Thanks!

Tricia