Troubles with MS Outlook 2016 after W10 upgrade (0x800CCC13)

[Vellaro]

Hi Guys. I need your kindly advice, because I have troubles with Outlook 2016 after W 8.1 upgrade to W10.
When I try to send e-mail, I have error code 0x800CCC13. ("cannot connect to the network..") Incoming mail are OK. From time to time, when I'm sending e-mail as a "reply" is OK. (sic.!) Other post clients (like windows mail) works OK.
I have troubles only with incoming mail in Outlook 2016.
1) I turn off windows firewall - no effect
2) scanpst - no effect.
3) Office 2016 reinstallation - no effect.
I assume that pop3/smtp configuration (account settings) is ok
Who knows how to solve it?

 

[Trebor]

I have exactly the same problem. Tried all sorts of things but can't fix it. Hope someone has found a fix that works.

 

[Ian]

Can you please try this and see if it fixes the problem:

https://www.windows10forums.com/articles/how-to-use-sfc-scannow.12/

I had the same error and this was the only thing that fixed it. Just make sure that Ourlook is closed when running the command.

 

[Vellaro]

Thx, I have found this solution in Outlook 2013 topic. This solution also works with Outlook 2016.
Problem has been solved by using sfc/scannow command.

 

[Trebor]

Can you please try this and see if it fixes the problem:

https://www.windows10forums.com/articles/how-to-use-sfc-scannow.12/

I had the same error and this was the only thing that fixed it. Just make sure that Ourlook is closed when running the command.

Excellent. That's fixed it. Thanks for your help. This had driven me mad for the last 3 days.

 

[bud]

Hi Guys. I need your kindly advice, because I have troubles with Outlook 2016 after W 8.1 upgrade to W10.
When I try to send e-mail, I have error code 0x800CCC13. ("cannot connect to the network..") Incoming mail are OK. From time to time, when I'm sending e-mail as a "reply" is OK. (sic.!) Other post clients (like windows mail) works OK.
I have troubles only with incoming mail in Outlook 2016.
1) I turn off windows firewall - no effect
2) scanpst - no effect.
3) Office 2016 reinstallation - no effect.
I assume that pop3/smtp configuration (account settings) is ok
Who knows how to solve it?

When I run telnet mail.tpg.com.au 25 , the server doesn't respond (need to install telnet first).
Something in Windows 10 is blocking traffic to TCP 25. I tried adding an allow rule to the Windows firewall though it didn't work.
I fixed this problem by changing my mail client to use SMTP TCP port 587 with TLS instead of TCP 25. Worked like a dream.
sfc /scannow didn't work for me.