I have faced similar challenges getting image files through company firewalls.
I barely was able to download an image file after several rounds of interactions with my companies firewall teams but its always an uphill battle
I was able to download a 912 image file using installer after getting my firewall team to give me open download access (And that too only once when the stars aligned-I have been trying to downlaod again but getting connection reset errors)
So we have 2 approaches
Straight method
Work with your companies firewall teams to give you a proxy with open download rights .Tail the proxy log files to see all the traffic details through the proxy
When you run into issues raise a case with SAG to and try to see where the problem may be.
Also try to download image using Command Central.I tried this but was unsuccessful.I involved my proxy team and tried to tail the proxy logs.However they confirmed the proxy servers was not being hit-Hinting at a possible proxy implementtion issue with the Command Central product(Maybe even a fix missing,however since i was not able to download the fixs images i stopped there)
I wasnt able to raise a ticket with SAG as my organization did not currently have a contract that allowed to raise tickets
Not so straight method
Download the image from home network and transport to your company premise(penddrive or download on company laptop from home)
or
Download the image in a cloud machine on AWS or somehere and ftp the image in to your company network
or
Get a vpn that has lenient firewall restrictions and download the image and fixes in one shot
#webMethods-General#webMethods#Integration-Server-and-ESB