troubleshooting Question
iPhone Exchange account doesn't work when on the Wifi, works on 3G
asked on
We have an Exchange server on our network which uses a split-dns environment. That is, we use:
"mail.ourcompany.com" - resolves to the internal IP of the exchange server when on the LAN, and it resolves to the external IP of our router when connecting from the Internet.
It took a bit of work to get the certificate working, but I changed all the internal/external URL settings to get Outlook working both inside the lan, and outside the lan, without complaining about certificate issues.
Now we're facing a problem:
iPhones can't add the Exchange Account when they are on the LAN connected to Wifi. They get an error message about not being able to connect to the server.
If they go onto 3G, they can add the EXchange account fine. AND - when they come back onto the WiFi after adding the account for the first time, mail continues to flow and everything works fine.
It's just the initial set up that doesn't work. Also, autodiscover doesn't work either - the iPhone prompts them for their username and server name when try try to set it up on the WiFi.
Any idea what could be wrong?
Exchange 2013 on Windows Server 2012
"mail.ourcompany.com" - resolves to the internal IP of the exchange server when on the LAN, and it resolves to the external IP of our router when connecting from the Internet.
It took a bit of work to get the certificate working, but I changed all the internal/external URL settings to get Outlook working both inside the lan, and outside the lan, without complaining about certificate issues.
Now we're facing a problem:
iPhones can't add the Exchange Account when they are on the LAN connected to Wifi. They get an error message about not being able to connect to the server.
If they go onto 3G, they can add the EXchange account fine. AND - when they come back onto the WiFi after adding the account for the first time, mail continues to flow and everything works fine.
It's just the initial set up that doesn't work. Also, autodiscover doesn't work either - the iPhone prompts them for their username and server name when try try to set it up on the WiFi.
Any idea what could be wrong?
Exchange 2013 on Windows Server 2012
Join the community to see this answer!
Join our exclusive community to see this answer & millions of others.
Unlock 1 Answer and 6 Comments.
Learn from the best
Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.
Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 6 Comments.
Try for 7 days”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.