Hi, at work we have a ds-7608ni-k2 nvr that keeps corrupting its dns lookup
Firmware: V4.30.061 build 210313.
The device is set to use DHCP having a reserved IP.
This only picked up our primary DNS server so I have manually added the IPs of our 2 onsite DNS servers.
The device is in a vlan that doesn't have access to the external internet so I can't use public DNS servers.
Mail has been configured for camera events and I've used the domain name for the mail server.
This has all been working fine. It has been emailing events with snapshots.
3 times now I have noticed that it has been a while without an email and when I perform an email test via the nvr it fails.
Editing the IPs of the DNS entries brings it back to life. (I swap the primary and secondary IPs around).
I can go back and set the IPs to how they were and it still works so there is not a persistent issue.
Once it happens it won't fix itself even after being left for weeks.
On the previous occasion I left the IPs swapped thinking if there might be an issues with our primary DNS server.
Emails stopped over the weekend when using the secondary. I don't know a precise time as I base it the last email received which depends on an event trigger rather than a log entry.
So this has happened no matter which DNS server I set as the preferred one.
We have other devices with the same DNS and mail settings and they are not experiencing any glitches.
I could use the IP of the smtp server as a work around, although work is going on to move devices to different IP ranges.
Just noticed this applies to the time server (NTP setting) as well.
The people that look after the servers say everything their end is ok. (Standard inter departmental statement!).
I think I'm on the latest firmware version. The issue has been there since we were given the nvr and definitely before I updated the firmware.
Any suggestions??
Thanks
Firmware: V4.30.061 build 210313.
The device is set to use DHCP having a reserved IP.
This only picked up our primary DNS server so I have manually added the IPs of our 2 onsite DNS servers.
The device is in a vlan that doesn't have access to the external internet so I can't use public DNS servers.
Mail has been configured for camera events and I've used the domain name for the mail server.
This has all been working fine. It has been emailing events with snapshots.
3 times now I have noticed that it has been a while without an email and when I perform an email test via the nvr it fails.
Editing the IPs of the DNS entries brings it back to life. (I swap the primary and secondary IPs around).
I can go back and set the IPs to how they were and it still works so there is not a persistent issue.
Once it happens it won't fix itself even after being left for weeks.
On the previous occasion I left the IPs swapped thinking if there might be an issues with our primary DNS server.
Emails stopped over the weekend when using the secondary. I don't know a precise time as I base it the last email received which depends on an event trigger rather than a log entry.
So this has happened no matter which DNS server I set as the preferred one.
We have other devices with the same DNS and mail settings and they are not experiencing any glitches.
I could use the IP of the smtp server as a work around, although work is going on to move devices to different IP ranges.
Just noticed this applies to the time server (NTP setting) as well.
The people that look after the servers say everything their end is ok. (Standard inter departmental statement!).
I think I'm on the latest firmware version. The issue has been there since we were given the nvr and definitely before I updated the firmware.
Any suggestions??
Thanks