Forum Discussion

Nimbostratus

Jan 15, 2016

Troubleshooting Dynamic Ratio Load Balancing

Hello, I have a collection of 8 servers that need balancing, and unfortunately all other balancing methods have proven ineffective, due to the spontaneous nature of the spikes they receive. This...

Nimbostratus

Jan 19, 2016

Hello again,

It is to my belief the issue comes down to the dll file, F5.IsHandler.dll. The most recent documentation for use of this dll is IIS 7.5, and we are using 8.5. Is there any updated dll files available for use?

I have come to this conclusion because I was able to successfully connect using curl, and everything seems to work fine, yet it is still returning "invalid data"

Thanks

Danny_Epperson_
Historic F5 Account
Jan 19, 2016
I would agree. Microsoft mentions deprecating WMI, perhaps this is related. If you haven't already looked into it, try the IIS 6 WMI Compatibility feature. http://www.iis.net/learn/install/installing-iis-85/installing-iis-85-on-windows-server-2012-r2
FosterPatch_243
Nimbostratus
Jan 20, 2016
I attempted adding the IIS 6 WMI compatibility feature to the servers... No change. IIS 8.5 is about 3 years old now...How does F5 not have standard procedures for it? If I am attempting to use f5isapi.dll and this IIS 6 compatibility feature, should I change the web.config as well?
FosterPatch_243
Nimbostratus
Jan 20, 2016
I created a domain account name, then added the account to every affected server, and made sure that is the username/password in big-ip, and also in IIS Manager. Still returning "invalid data"... I really don't know what else to do. I've tried with F5.IsHandler, f5isapi, and f5isapi64