If you always see the following screen:
If you find your update speed is very unstable, please try to use a proxy server. Should you try the following settings to setup the proxy server.
Open NOD32 Control Center, select "Update -> Setup"
Select "Advanced"
Select "Advanced"
Select LAN / fixed line
Make changes referring to the figure below. Press "OK" when you are done.
Press "Update Now" to update.
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