Help! Upgrade done on E500 but clients not browsing

Hi Professionals!
Kindly help as I’m getting too many calls from customers that they are connected but couldn’t browse.
I actually did a fw upgrade(fw v3.6 r16) on 15cnpilot(E500) on my network and those I couldnt reach on the web are the ones customers are calling complained of not browsing.
I could get reply from the device through ping but I can’t reach it on browser. What should I do in other to prevent tech visit for manual reset.
Kindly note that devices were showing online on cnmaestro.

Hi,

Can you invite me to your cnMaestro cloud account and I will debug them. I will send you my email id in another message.

Thank you,

Kunal

Oh! Sorry, I don’t have such privilege to grant such. Thanks

 As you are saying you are not able to reach AP through browser, are you able to ssh to the AP?. Is it possible to get AP config which you are using from AP's which are in working condition and have the same configuration. Are you using mesh also in your network?

If at all you have the configuration then please email it to me, I have provided you my email id in the private message.

Thank you,

Kunal