I was trying to figure out why one of our multi-practices kept complaining about wifi issues. That they could connect but nothing worked.

Sometimes it would, sometimes it wouldn't. Now, this is a very busy office with lots of patients each day. Four floors all sharing the same network, which is pretty big for us.

I had a regional manager contact me today basically begging for my help because her laptop could connect to wifi, but it said it was offline.

I got her to hotspot her iPhone and got remoted in, checked a few things, all looked good. Had her connect to our wifi and I was able to stay connected somehow. Cool. Checked all settings, all looks good. She got an IP, DNS was working. Laptop had been up for 200 hours, so we rebooted and I dropped.

She confirmed the laptop had come back up and she was able to sign in to Windows and wifi, but had those same messages again. What looked a little strange to me was the IP of the device, and I remembered this location used reserved IPs outside our usual range. So I go looking. The MAC doesn't have a reservation, okay. So I deleted the IP reservation and her laptop got a fresh IP and started working just fine.

Huh. Then I notice DHCP leases that are soft-reserved through... July 14, July 15? That can't be right. Nothing's connected to the IPs that are reserved. What's going on?

8 days?! Who the fuck sets DHCP reservation in a busy 4 floor office to 8 days?!