Proxy and DMZ issues

Pardon my being absent from the blogging world for a few days. Tasks in the office are over flowing while my boss is on leave. The proxy server is acting up weird almost every single day. We have reinstalled the ISA server several times already. I guess it's high time to replace the hardware, don't you think. Servers connected in the DMZ can't be access. I've tried reseating the data cables, power off the switch and all very I resort the last option which is to ask our regional network administrator (the one in China) to check our firewall. Good thing as he was able to fix it or else “Gollum” will bombard our team with shit. Hahaha! Hopefully, things will be smoother this day. Good day to all!