1 AP250 out of 20 at one site is having trouble providing network access. Devices can connect to it and receive an IP but they will lose any sort network access. What should I be looking at? Please help

[matt_nissen]

At one of our sites we have 1 AP250 that is having trouble with network passthrough. Every device should be configured with a standard the previous tech should have put in place but I found that every device is configured independently from the actual radio profile.

This device in particular didn't have the Native VLAN values needed...which after I entered, every device was able to finally get an IP and work!

Now devices that are connected to it will stay connected but seem to lose any network access (can't reach internet, company shares etc...)

This AP has apparently been a problem for the users near it for a couple years and IT is now finding out about it..... the application guys have just been telling the users to reboot a million times.

Looking at immediate errors or diagnostics show nothing but good values...

Any help would be great! Thanks!

[admin32]

quick answer is just swop it with one of the other 19 temporarily, if issue moves to the new location then you know its the AP or its config, if it happens to the new one its a location issue

[samantha_lynn]

Thank you for the new packet captures, but if you open them you'll see that they are blank. Could we try running the packet capture while the APs are passing traffic (with the SSIDs on)?

[matt_nissen]

​I think this is the cause of all the troubles here.... for the last couple weeks I've talked to the users, different departments, and checked over the settings in Aerohive and I've found the scangun wifi problem was 2 things - the AP in the warehouse and some fine tuning/cleaning of the wifi manager.

Now I have great speeds, coverage and roaming happening at our site..... except for this one AP.

i attached a more recent packet capture...but I have all the SSID's off...but the radios are still on...

[samantha_lynn]

Could I see the spamming behavior in the previous packet capture or is this a new symptom that happened after we took the capture? I'm asking because I'd like to check to see if one or a few clients are passing more traffic than others to see if we are getting spammed, and we'd do this with a remote sniffer packet capture.

[matt_nissen]

​Lets start over...…

After all this time I have been trying different settings to figure out whats going on.

If I turn off the wifi on our 1 AP everything else works fine. The coverage is not that great for the area we turned off the wifi...but everything works well.

Manually adjusting the transmission power a few days ago to 5 on 2.4ghz and 10 on 5ghz really made a huge difference - there must be a lot of interference to screw with it this much.

but now, the problematic AP is basically just rebooting every few minutes.... something is spamming it? or something.... it shows almost 50% Tx packet loss.... something is spamming it?