hi guys

it's my second post here, i face this problem in between VLANs, i have a bad trnsfer rate between two vlans , no connectivety problem between them just when im trying to bring any file from the other vlan it toke long time, i means an hour +, but the file transmition completed without disconnection, the two vlan connected using a router.

Plz where to check first in my network?

check the router connection to the switch, since any packet going between vlans will have to go through the router. Make sure this connection is full duplex.