Error 406 After Upgrade to 4.0.1

[DraCoola]

After manual upgrade from 4.0 to 4.0.1, I have an error like bellow while execute domain search script :

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406 Not Acceptable

This request is not acceptable
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Switch to mod_suphp and the script just work fine.
Downgrade to 4.0 again still got the same 406 error.
Downgrade to 3.3.24 brought the same error either.
That script has just worked fine before this v4.0.1.





The error log from cpanel is :
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[xxx.161.63.xxx:10034-0#APVH_dxxxxx.com] File not found [/home/dxxxxx/public_html/406.shtml]
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My external App environment is :
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PHP_LSAPI_MAX_REQUESTS=500
PHP_LSAPI_CHILDREN=75
LSAPI_MAX_IDLE=5
LSAPI_PGRP_MAX_IDLE=5
LSAPI_MAX_PROCESS_TIME=300
-----------------------------------------------


Any idea how to fix this?

[DraCoola]

Update :

SMF login are facing the same error page : 406 not acceptable
All SMF user cannot login to their forum.

Please help me....

[DraCoola]

Update 2 :

Cannot switch to apache through lsws whm plugin after upgrade to 4.0.1.
I have to start apache manually from console in purpose to switching.

[DraCoola]

Update 3 :

1. Uninstall v4.0.1 through sh /usr/local/lsws/admin/misc/uninstall.sh
2. Remove lsws directory
3. Installing v4.0 from scratch

Problem solved

[mistwang]

I think 406 was the result of a mod_security rule.
I could not think of any change in 4.0.1 that can cause this.
maybe I can take a look at your server if you don't mind.
And there is no need to reinstall from scratch, just use /usr/local/lsws/admin/misc/mgr_ver.sh to switch between versions, just make sure to restart LSWS after that.

[DraCoola]

I have switching between v3.3.24, v4.0, and v4.0.1 on the fly through lsws whm plugin but still resulting error 406 while executing login form on any sites under my server.

But if I switch to apache + suphp, the problem is just dissapear.
The mod_sec2 rules are the same for both apache or litespeed.

I hope you can investigate this issue, check your PM.

Thank you for helps