11-16-2018 11:46 AM
11-16-2018 10:54 PM
- Difficult to tell, in a first debugging step remove Umbrella from the DNS setup and start using the DNS servers from the ISP. Check whether the problem then remains in place or not.
M.
11-17-2018 09:10 AM
11-19-2018 01:35 AM
please collect some more information
1) if the site works what IP address is resolved?
2) if it does not work what IP addres is in the cache?
3) what is the SOA (primary DNS) of this domain?
4) where comes the timeout of 30 min from?
(it may be this is the TTL of the dns-record that is too short)
11-19-2018 12:53 PM
looks like it was an issue on Cisco Umbrella side
Mash Sarband (Umbrella)
Nov 16, 14:12 PST
Anyone that used us as a DNS resolver. We will provide you with more infromation after we receive the RCA.
Mash Sarband
Regional Technical Support Manager (US west)
Cisco Umbrella
Nov 16, 14:07 PST
Thanks Mash, is this affecting all Cisco Umbrella customers or only a particular set?
-------- Original message --------
Mash Sarband (Umbrella)
Nov 16, 14:05 PST
Hi
We have asked for a Root Cause Analysis from our engineers and will update you as soon as we hear back.
Best regards,
Mash Sarband
Regional Technical Support Manager (US west)
Cisco Umbrella
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