ios - Magento Login issue with iPhone iPad (Safari) since two weeks knowing that I was able to login before -

i have issue login in magento dashboard apple devices (iphone 6 , ipad) occurred 2 weeks ago. what strange last month had no issue connect magento used saved backup of website @ time before issue occurred issue still remain. browsed on several discussions on topic such as: - link 1, - link 2 (related system->configuration->general->web->session cookie management), - link 3, none of them me solve login issue apple devices only.

if has idea please let me know. thank help.