Outlook is disconnecting when enabling windows firewall on Exchange CAS servers

Hi,

We have an issue of outlook get disconnected when windows firewall is enabled on Exchange 2013 CAS servers

September 2nd, 2015 4:23pm

Hi,

Please check that the required ports are open on the firewall. Port requirements are here: https://technet.microsoft.com/en-us/library/bb331973%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396#Clients

Thanks.

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September 2nd, 2015 6:54pm

Hi,

We have an issue of outlook get disconnected when windows firewall is enabled on Exchange 2013 CAS servers

Define "enabled". Its not supported to stop the Windows Firewall service. It should always be running and should have been running during the original Exchange setup as that allows setup to set the correct firewall ports.

September 2nd, 2015 8:05pm

Hi,

We have an issue of outlook get disconnected when windows firewall is enabled on Exchange 2013 CAS servers

Define "enabled". Its not supported to stop the Windows Firewall service. It should always be running and should have been running during the original Exchange setup as that allows setup to set the correct firewall ports.

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September 3rd, 2015 5:22am

Hi,

Please check that the required ports are open on the firewall. Port requirements are here: https://technet.microsoft.com/en-us/library/bb331973%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396#Clients

T

September 3rd, 2015 1:18pm
Check that the ports are open and you can telnet onto the ports which are listed in the above link, especially 443 and 80. Do this with the windows firewall service started and the firewall disabled.
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September 3rd, 2015 1:18pm

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