WLAN issue

[Wajid]

Hi,

for last couple weeks having issue on few clients with WLAN. clients connect to SSID with no "no internet"

ipconfig shows 169.x. Based on Wireshark on client pc found DHCP issuing IP but for some reason clients unable to pick IP,  found work around have to clear lease on DHCP then disconnect and connect SSID works. Our DHCP servers are on cloud.  Issue appears to be growing across other sites on few pc others works perfectly fine. 

desktop team compared machine with working and non-working no difference and involved AD team to verify user settings. Most of APs are MR52 and MR56. Any insight would be appreciated.

Please note - issue notice on SSID with and without VLAN tag.

[Brash]

169.x IP address indicates that the PC hasn't received a DHCP response.

Do you see a response received on the client  Wireshark capture? 

[Wajid]

Yes, we see client response but for some reason its not binding IP

[MarcP]

Is your DHCP lease pool full?

[Wajid]

No, We have 80% of free IPs