DHCP not farming out address, randomly
Bit of a strange one that I'll run past you. It's a site I only visit on a fortnightly basis so excuse any vagueries, but thought asking might give me some ideas to try.
40 wireless (RM) laptops.
Circa 20 desktops
2 servers, admin and curriculum (CC3).
Wireless is non managed, supplied by Dlink AP7100 access points
CC3 server dishes out DHCP (although for some reason it was on a split load, which I today changed) and DNS.
Some, but not all of the laptops are refusing to pick up an IP address from the CC3 (DHCP) server. The setup's are identical. I've just added 5 brand new RM mobile one widescreen laptops, built identically. 3 pick up addresses, 2 don't.
I've flushed all relevant caches, restarted the access points, flushed the DHCP allocation list. Manually set the CC3 server as the gateway (although ultimately the router will be the gateway) to force detection as the DHCP server. Checked all firewalls are disabled.
As briefly mentioned, both the CC3 and admin servers ran DHCP on a split load, CC3 doing a small amount (50 IPs) and the admin doing the rest (100). That's a setup that RM (at least used to) recommend which harks back to the old days of NT kit, so I removed that and set the cc3 server to handle them all. That didn't cause the problem, just part of my attempts to fix.
So, any input gratefully appreciated :)
Nothing's doing the trick, and I'm fresh out of brain-juice. There's quite possibly