I am having a very curious issue happening anytime I setup a VLAN that needs to be accessible across both of our netgear gs748ts switches. When i do that, whether its for wifi access or to secure a server or for VOIP traffic, it literally will take at least 12 hours after creation for the darn vlan to function properly, even after i reboot the switches and or firewall if I've setup interfaces for new vlans to clear any cache there might be.
I know this is not normal, but for example I setup vlan for our guest wifi in both buildings, and setup both switches exactly the same way with the exception of the firewall port on the second switch. So right after I had setup the vlan on the switch connected to the firewall, it worked perfectly right away, but It took until just now to for the guest wifi to work in the second building with no changes whatsoever.
Has anyone came across any issues like this before, and if so what you found to fix it from happening again?