icloud not syncing on all devices

[etaf]

icloud not syncing on all devices

A friend has an iphone, ipad and windows PC with apple control panel - all with the same appleID/icloudID

Up until Aug 8th - all devices kept in sync with photos

Now the ipad has only updated to 8th aug

Logged into the icloud.com website
and all photos are there

Photo stream switched on
ipad and iphone on iOS 8.4
Windows PC on Windows 8.1

If I take a photo on the ipad - it goes to the iphone only
iphone photos are not going to the ipad or windows pC

The ipad had an album photo stream
I got her to reset the ipad - using power and home button
the photo stream album disappeared

i went to log out of the apple control panel - only to be told all photos on apple icloud drive will be deleted - so did not do that

As none of the photos on the PC are backed up, i have recommended she backup all the photos on the windows PC and then we can logout of control panel

any one have a suggestion ?