We are attempting to resolve an issue with the Oceanic servers that can lead to a crash of the match instance.
After experiencing one of these match-wide disconnects, players are not be able to rejoin the match successfully upon returning to the MechLab. The 'Mech used for that match will then remain locked from access until the standard match timer is expired.
So far we have encountered 30 Oceanic match crashes out of an approximate total of 3000 matches since August 4th, so this is not a systemic issue. We'll keep everyone posted on any fixes or developments regarding these crashes, but for now they have a low rate of occurrence.
This issue is not present with the North American and European servers.
UPDATE
The engineers performed some work over the weekend in an effort to resolve the Oceanic server issues, but disconnections and general instability are still effecting the Oceanic servers as of this morning. The server crashes highlighted in the original post were a side effect of a greater issue that is currently being investigated.
While we are working with our hosting and server partners to resolve the ongoing issues, the Oceanic servers will remain active.
As a result of these problems, the Oceanic Takeover event will be extended until further notice.