SQL urgent need help

this is my query 

 

with A as (select ClientID,CommunicationLogID,Fullname ,ContactDayID ,callForActivityID,ContactDirectionID,ContactDateTime,RANK() over(partition by ClientID order by ContactDateTime desc) as RNK from vwREClientCommunication)select * from A

where ContactDayID >=1887 and ContactDayID <=1887 And callForActivityID=1 and ContactDirectionID > 0

 

below is a table that return by above query

 

please focus on last coloumn  "RNK" which is i am getting wrong 

 

please help me where i am getting wrong after 1,2

 it should again started 1 but it getting 13,20 and something else 

 

 

 

 

ClientID	CommunicationLogID	ContactDayID	callForActivityID	ContactDirectionID	ContactDateTime	RNK
485	259837	1887	1	2	55:00.0	1
9001	259767	1887	1	2	39:59.0	2
9424	259727	1887	1	2	46:22.0	1
13736	259814	1887	1	2	10:25.0	1
22784	259875	1887	1	2	14:54.0	13
23996	259785	1887	1	2	54:54.0	20
24399	259833	1887	1	1	45:15.0	1
24449	259826	1887	1	2	32:29.0	1
28048	259860	1887	1	2	45:29.0	5
28048	259857	1887	1	2	43:02.0	6
32807	259746	1887	1	2	36:04.0	1
32807	259729	1887	1	2	54:24.0	2
32807	259716	1887	1	2	15:07.0	3
34541	259756	1887	1	2	10:13.0	2
36326	259791	1887	1	2	13:39.0	1
37530	259757	1887	1	1	12:20.0	12
37584	259771	1887	1	1	12:35.0	1
40028	259749	1887	1	2	43:35.0	8
41062	259824	1887	1	2	25:43.0	2
41551	259858	1887	1	2	43:26.0	2
42783	259907	1887	1	2	24:33.0	5
43161	259914	1887	1	2	43:53.0	7