Squid seems to choke and stop sending Windows Update (cached) files to clients

awsiemieniec

pfSense 2.1.5 amd64
squid3 3.1.20 pkg 2.1.1

I have about 80 Microsoft Surface RT tablets to perform a "Windows Update" on so I installed the squid3 package on the pfSense (so far I don't see any possible way to clone an RT so the process to setup a bunch is very tedious and manual labor). I set the following configuration up:
LAN
allow users on
transparent
hard disk cache size: 8192
Min. obj. size: 64 (kb)
Max. obj. size: 1048576 (kb)
Memory cache size: 1024 (mb)
Max. obj. size in RAM: 32 (kb)
Cache dynamic content: Yes
Refresh patterns: Windows Update

Everything else is factory setting.

What will happen is I'll have maybe four or five Surface RT tablets running a Windows Update and then they all seem to stop downloading from the proxy cache. In the tab "real time" I can see the TCP_HIT status scrolling so I know the cache appears to be working. I'm using 12% of a 68GB HDD and memory usage is 10% of 2GB.

Any ideas?

kejianshi

I'm not sure if windows updates is dynamic content.

I've gotten this to work well with ubuntu updates in the past.

Not so sure about windows.

That said, I will post this, which I have never tried and may totally break or fix your system. Flip a coin.

https://doc.pfsense.org/index.php/Squid_Package_Tuning

awsiemieniec

thanks for the assistance. I'll read through the content and apply (test).