Google captcha error

[ceapen01]

Most of the users are getting captcha error in google.com

Wondering why PA is not blocking such requests. 

Will the DOS policy in PA help prevent such unlimited outbound queries?

Page says our systems have detected unusual traffic from your computer network.

[kiwi]

Hi @ceapen01 ,

Difficult to say with the information provided.

How is the firewall identifying that traffic ? This would be my first direction to start troubleshooting this ?

Best,

-Kiwi.

[ceapen01]

Am not sure how firewall identifying the traffic. Anyways I have raised a TAC request.

[BPry]

@ceapen01,

I'm not sure exactly what you're expecting the firewall to do here? Unusual traffic detection like this can be something as simple as Google seeing a sudden raise in requests from a new/existing IP address. If you look at your traffic logs have you actually started sending more traffic to Google recently? I'd try to identify things with what you have available to you, which is largely just trying to see if the amount of traffic you've sent has actually changed.

You can also attempt to see if the issue is limited to a single public IP if you have more than one. 

[E.Delil417682]

Hello @ceapen01, has TAC provided any solution or identified the root cause? I’m having the same issue and I’m not sure what’s causing it.

[JosephBedard]

I have seen this issue on some of my firewalls where the upstream IP from the ISP was a CGNAT. Switching that link over to a bridged IP resolved the issue for me. Additionally, if search engines category is set for decryption, a bunch of the captcha domains fall under .google.com and might gig this detection. Other times I have seen this, specifically from Google is in the morning at my largest sites, when everyone starts googling, everywhere, all at once. This issue usually clears the fastest but can be remedied by adding pool of IPs into your DIPP to help avoid Google's throttling algorithms.