We are implementing Skype for Business O365. I configured External DNS (Go Daddy) with an appropriate CNAME and SRV records for Skype for Business O365. Externally (outside of my office network), I am able to connect to Skype but I can not connect in the office. it says that Server is unavailable after typing a password.
In the office we have Windows Server 2012 DNS server (split brain DNS) for our domain.
How should I configure my internal DNS to make it work. I tried to configure My internal DNS exactly as external but for some reason it does not work.
Please let me know if you have ideas why it does not work internally (in the office network).