Sounds like he has the licenses on Waves site or Cloud. If the licenses are local via a USB port or on the hard drive then an internet connection is not required. I would go through the license procedure again. Waves will surf your computer and see if the files are where they should be.

Also make sure you are running the latest version of Waves Central.
 
But if licenses is on the computer, it should work. Internet or no internet.
 
 
[edit] I love my waves plugins. All of them!!

I was sure I had my licensing moved to my DAW and that's what Waves confirmed they show for the licensing--however, my guess is I had iLok in the mix somewhere (pardon the pun) in the process and that's what's messing me up.
 
Last time I lost Internet access due to some construction, I had the same issue. I (thought) I moved my licenses off the cloud and onto my local system to prevent that from happening again, but lo and behold, I lost Internet temporarily due to a bad AV program upgrade and boom, issue reared its ugly Waves again.
 
Waves support asked me to send them my system report that included event logs. I haven't heard back yet, but I did tell them I want to move the license where ever I need to so as not to lose access to the plugins in the event of no Internet.
 
I don't mind reporting back if it's user error--because I'll be happy to have the issue resolved, and I do like the plugins I have. My challenge is that the support dude said my license showed on my DAW (PC) and yet...so I'm waiting to hear why that is.
 
I'll report back...
 
 
Thanks all,

Here's what Waves found out. Just an FYI, my issue from the antivirus upgrade did remove all of my network connections. I will be moving my Waves licenses to a USB thumb drive.

Here's Waves:
Waves licenses are recognized by your Computer's Ethernet Network Adapter MAC address. Due to this fact, you can disconnect from the internet, and as long as your Ethernet adapter is enabled there shouldn't be an issue. You can simply disconnect your Ethernet cable and everything will continue to work fine.

Fyi.

That's pretty common with license managers. FlexLM is big one we see in engineering software and licenses bind to a "Host ID" which is normally a MAC address of an Ethernet adapter (though it can be a special dongle).

so, after all this palava, 
it boils down to this?
 
" Just an FYI, my issue from the antivirus upgrade did remove all of my network connections."

batsbrew
 
so, after all this palava, 
it boils down to this?
 
" Just an FYI, my issue from the antivirus upgrade did remove all of my network connections."

 
Yes, that doesn't seem correct to me.
 
I have Waves Central on my studio PC. I disable the ethernet adaptor through Windows Device Manager. So I have no internet. And I can still use my Waves plugins.
 
Something ain't right.

Yeah, I'm only going to be satisfied when I have my licenses on a USB drive, then remove my network adapters, and I can still load my plugins. If that works, then I'm not really going to care as much as to why it failed the last couple times.
 
BTW--the time before, there was nothing wrong with my network adapters--I just didn't have any Internet access and the same load issue was there...go figure.
 
FYI--The findings from Waves support was after they reviewed my system logs, etc.

so, it wasn't waves.
 

Just so I am clear razor, I do have my Waves license on a USB stick that I can put into any computer loaded with Waves plugs and use my products with no Internet connection.