Increase spawn rate vsro problem

I use this querry:[Only registered and activated users can see links. Click Here To Register...]

the mob appear and disappear any one fix this?

note: i use 1 gameserver for all

USE SRO_VT_SHARD_INIT
UPDATE Tab_RefNest SET dwmaxtotalcount=dwmaxtotalcount*0.5
WHERE dwTacticsID NOT BETWEEN 41000 AND 43860
AND dwTacticsID NOT BETWEEN 32100 AND 32800
UPDATE dbo.Tab_RefNest SET dwmaxtotalcount=1
WHERE dwdelaytimemax=21600

Use that query

Mobs appear -> disappear means that ur gameserver is overloaded. Use a second one and you'll be fine.