Windows 10: Outlook/Exchange blocked by ISP when tethered to phone reality check

Well, apparently my cell phone provider partially blocks access to Microsoft Exchange when you are accessing the internet while tethered to your phone. I would be curious to hear of other people’s experience with this. Here is the scenario.

Running Windows 10 and Outlook 2016. Configured a Hotmail account to use Outlook 2016. Works flawlessly when on home internet, whether hard-wired or wireless. Works flawlessly when on another home internet connection at a neighbor’s house. So now, on the same machine I connect to the internet via my cell phone’s wireless hotspot feature. The SSID appears on the computer and I select that to connect. No other internet connection is present. What happens is that Outlook keeps asking me for my password over and over again. Obviously I put in the right password but it just keeps prompting me. It will not connect to Hotmail. Now, with that same connection, I connect to a VPN service that I subscribe to. Just to be on the safe side, I do a “ipconfig /flush dns”. Outlook does prompt me once, but when I put in the right password, it connects to Hotmail just fine. Reboot computer. Connect to the internet NOT using the tethering feature of the phone. Outlook connects to Hotmail just fine. I try tethering to my phone and disabling all other connections and get the same prompting for password over and over again and it never connects to Hotmail. Again, if I connect to my VPN service I have to put in the password ONE TIME and then it works fine after that. It is totally repeatable. I have done nothing with Outlook profiles on the machine. Same profile. Also I have done nothing with any settings in the Mail Profile or in Outlook. Everything is consistent there. Apparently the wireless phone provider does not allow connection directly to Exchange with you are using tethering, unless you are using VPN over tethering which is different. Any comments or insights on this and have you seen it with your cell phone provider?


Moved from: Email / Connecting to Outlook.com with apps and devices

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Sync other Outlook contact folders via Exchange to smartphone?

Hello all

I just got done installing 2016 to my PC to which I used to have 2010 and via using the MS Exchange account this all works from with my company, when I was using 2010 I somehow was able to get other Contact folders I had created besides just the primary one to show their contacts on my company cell phones contact list. Which for that I am using a Note 5 with all the latest updates.

Basically in my Outlook program I keep certain contacts in other folders other then the main one so I can keep track of them better when working with things.

So while I got those all back with the PC version as I can now connect back up to the companies exchange server, the new Outlook account on the phone (as I cannot use the old default phone email account) does not seem to be picking them up when synced as the only one it with pull anything from is the main contacts folder.

Note, in the phones options for this Outlook account it does have a check box that reads "All Contacts", and it is checked. Also I have tried the checkbox in the folders properties for allowing it to be shown as a "Outlook Address Book", but that has not made a difference.

So I don't know if this is a limitation of the Outlook account on the phone, or is there some option in the new version of 2016 Outlook on my PC that I have to check so these folders can be synced?

Thank for any help