Exchange 2010 OWA issues in school but not externally

[Jambo_C]

I'm having issues with OWA within school. Mail and folders display correctly and people can send and receive OK but various things are playing up, I keep getting various error messages relating to the network connection being unavailable when users try to access options or add an attachment. If they manage to get to the options screen certain parts of the options don't display such as mail settings, we just get a blank area or it fails when trying to add an out of office reply for example. Users are also being repeatedly asked for their logon details. Outside of school it works perfectly, there are no issues whatsoever! Most people use Outlook 2010 within school which works fine but the students are using OWA and need it for their ICT lessons so this is becoming a bit of a problem as they can't do certain things. Has anyone come across anything like this before?

 

Thanks.

[Meldrew]

What browser are you using to access OWA - does it do the same in a different browser. Might be useful to have a screenshot of the errors too if you could upload?

 

Meldrew.

[Jambo_C]

It's with IE11 but does it on earlier versions and also on Chrome I believe. Typically when I just did a test for screenshots I couldn't recreate some of the errors. I managed to get the following though.

 

Error message whilst viewing contacts.

 

Blank options

[win]

Couple of things to suggest

 

Make sure the url for OWA is listed as a trusted site

 

Bypass proxies for local connections (especially the exchange server)

[Meldrew]

Also, what IP does your OWA url resolve to? Is it pointing to your external facing IP on a firewall, or to your internal IP of your exchange server?

 

Meldrew

[Jambo_C]

It's already in the trusted sites and is bypassing the proxy.

 

I'm trying to access it using our external address, https://mail.xxxx.xxxx.sch.uk/owa which resolves to the external facing IP.

[win]

Change it to:

 

https://exchange-server-name.domain/owa/

 

e.g.

 

https://exchangesvr.xxx.sch.uk/owa/

[synaesthesia]

Almost guarantee it will be SSL. Make sure you have nothing filtering SSL requests or acting as man in the middle (like Fortigate does, don't know about other services).

[Jambo_C]

Change it to:

 

https://exchange-server-name.domain/owa/

 

e.g.

 

https://exchangesvr.xxx.sch.uk/owa/

 

This just gives me a page cannot be displayed.

 

- - - Updated - - -

 

Almost guarantee it will be SSL. Make sure you have nothing filtering SSL requests or acting as man in the middle (like Fortigate does, don't know about other services).

 

As far as I know there's nothing doing this. This has only recently started happening and nothing has changed that I can think of.

[win]

Perhaps check the IIS settings on the exchange server to ensure OWA is accessed within the LAN i.e directly to the exchange server rather than going out via the firewall.

[Jambo_C]

Perhaps check the IIS settings on the exchange server to ensure OWA is accessed within the LAN i.e directly to the exchange server rather than going out via the firewall.

 

Sorry if this is a daft question but what exactly do you mean? Which settings in IIS do this?

[win]

Have a look at this link

 

Redirecting OWA Urls in Exchange 2010 – HOW EXCHANGE WORKS

 

if that fails check here:

 

https://social.technet.microsoft.com/Forums/exchange/en-US/48980a0f-5732-40e1-9dc2-e61a5fd550b9/redirect-default-website-of-exchange-2010-to-owa-login-page?forum=exchange2010

[Jambo_C]

Have a look at this link

 

Redirecting OWA Urls in Exchange 2010 – HOW EXCHANGE WORKS

 

if that fails check here:

 

https://social.technet.microsoft.com/Forums/exchange/en-US/48980a0f-5732-40e1-9dc2-e61a5fd550b9/redirect-default-website-of-exchange-2010-to-owa-login-page?forum=exchange2010

 

Apologies for the delay! I've tried this and I'm still getting the problems. It's really annoying as out of school it's completely fine, I can't understand why!

[win]

Make sure the link to your exchange server is listed in your 'site to zone assignment list' i.e. intranet safe zone

 

Also, do not use proxy on local network connections