Issue ftp very slow can't upload and disconnect

[shinichi kudo]

kindly advise about this problem
i installed server 2019 then update it to latest update
then install plesk on it
then create a domain

all are fresh new

when i try to connect to ftp to upload 50mb zip file i can't

Status:    Resolving address of domain.com
Status:    Connecting to 1.1.1.1:21...
Status:    Connection established, waiting for welcome message...
Status:    Initializing TLS...
Status:    Verifying certificate...
Status:    TLS connection established.
Status:    Logged in
Status:    Starting upload of D:\Media\004.mp4
Status:    Retrieving directory listing of "/test.domain.com/media"...
Command:    TYPE I
Response:    200 Type set to I.
Command:    PASV
Response:    227 Entering Passive Mode (1,1,1,1,199,6).
Command:    LIST
Response:    150 Opening BINARY mode data connection.
Response:    226 Transfer complete.
Command:    PASV
Response:    227 Entering Passive Mode (1,1,1,1,199,7).
Command:    STOR 004.mp4
Response:    550 The process cannot access the file because it is being used by another process.
Error:    Critical file transfer error
Status:    Disconnected from server

it start the upload 1st second with good speed then decrease fast to 0 bit/sec then connection error
after 1st disconnect it connect again and try to replace the current uncompleted upload but it says erro 550 used by another process

but when i upload small files less than 1mb it's successfully uploaded but begin fast the be very slow

the passive port configuration in plesk is default and runing

the host server in ovh

what i could do ?

 

[Nik G]

hello @shinichi kudo
Is that correct that you have IP failover at OVH hosting ?

any way, to diagnose the problem I'd recommend to create domain directly in IIS and try to check upload speed for this domain;
additionally, probably it makes cense to disable WAF (modsecurity) if it is installed and enabled - to avoid side effects


but it looks like general OS network issue which is better to address to OVH support.