Client cannot pass data past AP

[UKDanny666]

Morning,

I am trialing a 9120axi at home with the 17.4.1 embedded WLC, all going well untill this moring, one laptop connects but cannot even ping the AP, let alone get any exernal connectivty. 

All other devices are fine. Its like the client is diabled for some reason, there are no excluded clients according to the GUI, is there a way I can check this and/ or set the troublesome client to not black list?

I have checked the logs and there is nothing that comes up with the client. Can anyone help?

[UKDanny666]

Bizarrely, i think this is resolved, it turns out the HDMI lead for the monitor must have caused some issues, as i removed that and its now OK. :S

Premium shielded lead is now in and it seems relatively stable. Explains why nothing in the logs/disabled clients

[patoberli]

Sounds like a grounding issue. Make sure you also use a three pin power plug for the PC (if a PC).