Hey guys I have an issue that's been popping up a lot recently the past couple of weeks at work.
I'm a little stuck on where to even begin trouble shooting. First to lay out our setup:
We have a feed coming from our ISP that is being fed into Netgear SRX5308 router.
This is then feeding into my UNBT wireless system. For my management range: 192.168.6.x /24.
I have a HP desktop running Server 2012 acting as my DHCP server for the wireless network. It is hardwired directly into a UBNT switch in my core closet. IP for DHCP is 192.168.6.2 that is literally all the HP is running is the DHCP scope.
The DHCP scope is 192.168.200.x /16 - 192.168.254.x /16, I know. The subnet range is absolutely huge and can be unnecessary. However, there is literally nothing else on this network than wireless devices and the core switches and AP's for the wireless network. Our LAN network for our desktops and main servers are on a completely different network. Our wireless end user base averages about 800 connections a day. But I can easily reach up to about 4000 connections depending on if there is a special even going on that day.
Now the issue that I am having is that several Iphones and Macbooks will connect to the wireless network but not receive an IP address. Any Androids have not had this issue at all. They will sit with an 169.x.x.x address or 172.x.x.x address. Two of the iphones seem to have this issue regularly and I have even given them a static address on the DHCP server. Sometimes they will not receive the static IP address and they will stay stuck with the 169 address. Occasionally I can attempt to reconnect the iphones on the UBNT controller or restart the AP's and that will fix the issue but then a few days later I will have the exact same issue again with the exact same devices. Up until today it was only Iphones that I was having this issue but today and yesterday I've had the same issue with two Macbooks. Seems to be an Apple thing.
Any idea on what to try or where to start?
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