I've been freezing on servers and when I check the Forge log, I get this at the end.
2013-04-28 19:26:39 [INFO] [STDOUT] [TMI] Please ignore Forge item allocation errors. The items are fine.
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:43 [INFO] [Minecraft-Client] Stopping!
2013-04-28 19:26:44 [INFO] [STDOUT]
2013-04-28 19:26:44 [INFO] [STDOUT] SoundSystem shutting down...
2013-04-28 19:26:44 [INFO] [STDOUT] Author: Paul Lamb, www.paulscode.com
2013-04-28 19:26:44 [INFO] [STDOUT]
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:39 [SEVERE] [ForgeModLoader] It appears something has tried to allocate an Item outside of the initialization phase of Minecraft, this could be very bad for your network connectivity.
2013-04-28 19:26:43 [INFO] [Minecraft-Client] Stopping!
2013-04-28 19:26:44 [INFO] [STDOUT]
2013-04-28 19:26:44 [INFO] [STDOUT] SoundSystem shutting down...
2013-04-28 19:26:44 [INFO] [STDOUT] Author: Paul Lamb, www.paulscode.com
2013-04-28 19:26:44 [INFO] [STDOUT]