I have Snap ADSL here at home.
I use office 365 for my personal email and I also use office 365 for my work email.
I have noticed in the past few weeks that I am not getting new emails while I am at home on the wifi on my portable devices i.e. phone and iPad.
I have no issues with my laptops and desktop. ( Windows 7 pro, windows 10, Mavericks and Yosemite )
To resolve this on my iPad I changed the DNS to 220.127.116.11 and magically works.
I have changed the modem and that made no difference ( had a Netgear and replaced it with my old Netgear )
I put Snaps DNS into the router and that made no difference.
I also put google DNS into the router and that made no difference.
Initally I thought my profiles were corrupt so I deleted them and could not recreate them until I put in Googles DNS directly into the device.
Interestingly it is only my mobile HTC W7.8 and iPad 4 IOS 7.x that are having this issue. All other wired and wireless devices are fine.
I have not tried a different brand modem.
Anyone have similar issues or any bright ideas?