The fix for this error condition is relatively simple. If your Exchange server has network interfaces on more than one network (perhaps a SAN or a dedicated backup network), it may be attempting to locate global catalog servers using the wrong network.
Event Source: MSExchangeDSAccess
Event Category: Topology
Event ID: 2103
Description: Process MAD.EXE. All Global Catalog Servers in use are not responding:
Go to Control Panel > Network Connections > Advanced > Connections and move the network interface that has access to your global catalog servers to the top of the list. No reboot or service restart is necessary. The Exchange server “checks in” with a global catalog server every 15 minutes so watch it for a while to get the warm fuzzy feeling of having saved the day yet again.
Avanti | 24-Sep-07 at 5:37 am | Permalink
Great FIX!!!!!
Kerpau! | 24-Sep-07 at 7:06 am | Permalink
Thanks for the feedback, Avanti. I’m glad it helped out!