OK. I just received this Western Region camera from AliExpess...
Model DS-2CD2342WD-I
Serial No. DS-2CD2342WD-I20150906BBWRQQQQQ465
Firmware Version V5.3.3 build 150630
Encoding Version V7.0 build 150609
The camera was running POORLY: Sluggish...then responsive...then un-responsive...then non-responsive! Yikes...this suQs thought I.
So I downloaded the firmware for the model CMIP3142W-28S (file name: IPC4_V5.3.2_150915v2.zip), firmware version: "IPC4_V5.3.2_150915v2" from the LTS website. I crossed my fingers and uploaded to the camera (System > Maintenance > Remote Upgrade).
And all fixed. The camera now responds SMOKING FAST and the problems previously experienced are no more.
Thank you very much Mr. FastCamMan.
I'll tell you though...pushing that "Upgrade" button was a leap of faith!
But PLEASE think this through before you try this and NO COMPLAINTS if YOU brick your camera as result.
http://www.ltsecurityinc.com/downloads