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Resolved Error message when adding IP adress

Schrikbeest

New Pleskian
A Plesk 17.5 (2012r2) server gives back the following error when adding an additional ip:

Error: ifmng failed: Execute netsh interface ipv4 add address NIC1 xx.xxx.xx.xxx 255.255.255.240 failed[1]: The object already exists. at (execExtUtilChecked line 137) at Unable to add IP address(IFmng::IPManager::addIP line 286) at execute console command --add(vconsoleapp::start line 122) at execute C:\Odin\Plesk\admin\bin\ifmng --add "\"NIC1\"" xx.xxx.xx.xxx 255.255.255.240(vconsoleapp::run line 139) (Error code 1)

The ip was initially added under a wrong subnet mask so we deleted the ip and re-adding under the right subnetmask but it gave back the error.

I also pressed the "reread ip" button but no luck.
It's presumable that the ip adres lives somewhere in the server but we cannot find it. We tried to manually remove it via netsh command:
C:\Windows\system32>netsh interface ipv4 add address NIC1 xx.xxx.xx.xxx 255.255.
255.240
The object already exists.

Trying to remove it gives back:
C:\Windows\system32>netsh interface ipv4 add address NIC1 xx.xxx.xx.xxx 255.255.
255.240
The object already exists.

I looked into the registry but no luck on finding it somewhere, trying to add it via the GUI of the NIC doesnt work either.

We already rebooted the server.
 
Issue has been resolved due to the fact that the network size was a /28 network and the last one wouldnt fit in the range.
 
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