Research Academy
My account Customers About Blog Careers Legal Contact Resellers
The Burp Suite User Forum was discontinued on the 1st November 2024.

Burp Suite User Forum

For support requests, go to the Support Center. To discuss with other Burp users, head to our Discord page.

SUPPORT CENTER DISCORD

Communication error while scanning

Tushar | Last updated: Sep 07, 2020 08:03AM UTC

Hi, When i run passive scan or active on my respective website, it throws communication error. This error is showing in event log. Please help me in this issue.

Hannah, PortSwigger Agent | Last updated: Sep 07, 2020 10:03AM UTC

Are you able to access the site from your machine? If you send a request to the site in Repeater, do you receive back a valid response?

Tushar | Last updated: Sep 07, 2020 03:55PM UTC

Hello Hannah, Thanks for the response. Yes i am able to access site from my machine. If i send request to repeater it gives valid response. Basically it's a windows authentication application,so i use NTLM and it works fine for me previously it throws authentication error. But now it throws communication error when run active or passive scan.

Tushar | Last updated: Sep 07, 2020 03:55PM UTC

Hello Hannah, Thanks for the response. Yes i am able to access site from my machine. If i send request to repeater it gives valid response. Basically it's a windows authentication application,so i use NTLM and it works fine for me previously it throws authentication error. But now it throws communication error when run active or passive scan.

Tushar | Last updated: Sep 07, 2020 05:04PM UTC

IN Logger it shows time out:null and my application is still response manually. All request gives valid response when use repeater. But only in active and passive not working

Tushar | Last updated: Sep 07, 2020 05:04PM UTC

IN Logger it shows time out:null and my application is still response manually. All request gives valid response when use repeater. But only in active and passive not working

Tushar | Last updated: Sep 08, 2020 06:14AM UTC

Hello Please someone help.

Hannah, PortSwigger Agent | Last updated: Sep 08, 2020 08:09AM UTC

Are you using NTLM v1 or v2? Is it working when you proxy the site?

Tushar | Last updated: Sep 08, 2020 01:21PM UTC

I am using NTLM v1 and its working fine for me

Hannah, PortSwigger Agent | Last updated: Sep 09, 2020 11:14AM UTC