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Remote Probe always disconnecting with DDNS

Votes:

0

Hello,

We have a Remote Probe in one of our customers Site. We use no-ip.com DDNS to connect the remote Probe to our Core Probe, which has a static IP Adress.

We have seen that on every Public IP Change of the Remote Probe, the Core Probe loses the connection to the remote probe for up to 6-10 hours.

Surprisingly this happens only on this specific customer. Do you have any Ideas?!

The Error Log says: Connection Closed by Server , please check ip allow/deny list (retry in 5 min).

Thank you

disconnected dyndns remote-probe

Created on Jun 15, 2016 6:58:42 AM



3 Replies

Votes:

0

Is it possible that it takes a while until the PRTG server receives the new DNS entry? Does it work again when you do ipconfig /flushdns on the PRTG host, once the IP changed?

Created on Jun 16, 2016 8:55:52 AM by Stephan Linke [Paessler Support]

Last change on Jun 16, 2016 8:56:06 AM by Stephan Linke [Paessler Support]



Votes:

0

Hey,

The Probe ist currently disconnected again. I executed ipconfig /flushdns with no result - 30 Minutes after Executing the command nothing happens. A NSLOOKUP also gives the correct IP Address.

We have multiple Customers with DDNS (same provider) where no Problem exists. I just now have realised, that our customer has 2 PRTG Installations on 2 different VM's. May that cause the Problem?! It shouldn't as the Remote Probe ist trying to connect to the Core Probe, right?

Created on Jun 17, 2016 8:21:08 AM



Votes:

0

Best thing would be to open up a support ticket so we can take a look at the logs. If the VMs don't share the same DNS name, it should not be the cause here. Simply send us a support bundle via PRTG (Setup > Contact Support).


P.S.: Im Ticket können wir dann auch auf deutsch weitermachen, wenn gewünscht :)

Created on Jun 17, 2016 9:04:24 AM by Stephan Linke [Paessler Support]

Last change on Jun 17, 2016 9:04:39 AM by Stephan Linke [Paessler Support]




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