HTTP Parser error is launched constantly

Ignition
1

Hi all,

Im getting this error in Ignition V7.9.11:

Illegal character 0x16 in state=START for buffer HeapByteBuffer@4ec19b22[p=1,l=517,c=8192,r=516]={\x16<<<\x03\x01\x02\x00\x01\x00\x01\xFc\x03\x03N(\xB5y?T\xB0…\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00>>>isNull=“true”/></…pa8XgCRAdNNHekL}

This error has been repeating every Saturday at the same time during 15 min. Between this time, in production lines the plc status show timeout errors. I have been searching in the internet but I havent found enough information.

Someone knows what or why this errors is launched?

Thanks!

2

I would check with your IT department because it sounds like some kind of network/security scan is happening at that time.

3

Hi Kevin,

Thanks for your quick response. I was checking into server event viewer and I found a lot of error related with schannel source, that makes me think that it is indeed a security issue.

Thanks!

4

Hi Carlos,

Were you ever able to solve this issue ? I am experiencing a very similar issue. Ignition v7.8.3 running Windows 2012 O/S serve. Ignition is crashing every Saturday. Similar messages in the wrapper logs, Lot of troubleshooting but no root cause. Thanks, Dan

5

Hi Dan,

The problem was due to some security updates on the servers. Uninstalling them solved the issue.

6

I believe we found that our v7.8 server was being scanned by an IT Cyber Security application. It must be something in the older version 7 Ignition that conflicts with the scan as it didn't affect the newer v8.x servers.

7

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