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A device sending Win 0 is indicating that its TCP receive buffer is full and it needs the other party to wait. Generally this isn't a big problem as the 2 parties can sort things out. BUT in your case those Probes that follow make it look like the one side is waiting for quite a while; I can't quite see the times but it looks like 5+ seconds. Is this impacting users in any way?

I agree with Jasper above that as long as this is something like a printer and the Win0 only happens when something like initial bootup and you don't see any related user impact, you can probably ignore these. If however this is happening regularly on a client workstation or worse a server, I would definitely look into the TCP receive buffer and resources.