I've replaced the sylink.xml file from a working client on all the rest. All of the PCs seem to be reporting statuses now but I'm still having a couple of weird issues.
All of the clients are showing in the "Clients" tab but only two are reporting statuses and are showing uptodate virus definitions.
In the "Home" tab Scan failures, Antivirus definition update failures, Intrusion prevention signature update failure, Are all showing 30 clients when there should be only 16.
I think SEPM is still looking for the 14 that I replaced the Sylink on. Is there something I can do to remove the 14 with the old sylink out of the system so those errors are not shown anymore?