IMac Yosemite 10.10.5 Slow upload Speed
Our Company had purchased 2 Apple IMac 27" I5. Previous Mac's (10.8.5) had no problem with BT Fibre upload speed averaging 14 Mbps. However the new Yosemite OSX 10.10.x has terrible slow upload speed, The last test was consistently showing results of 0.14 Mbps. Download is fine.
The route to the internet goes through structured cabling into a Cisco 1800 Router (IOS 15.1(4)) and finally out through a Juniper SRX210 Firewall.
For testing purposes, If we bypass the Cisco the speeds increase to normal. We cannot however permanently bypass the Cisco so this is not an option.
I've updated the Cisco IOS and updated to the latest version of Yosemite 10.10.5 and neither has fixed the problem
Please help me troubleshoot.
SS
iMac, OS X Yosemite (10.10.5)