slow speed on LAN interface

[TD]

HI, 

i noticed slow speed on LAN interface, when i open GUI from LAN it's very slow but when i open it from WAN side it's quicker. i checked  speed it's 1Gb/s and on the lan switch it's the same, MTU is 1500 by default, and when i upload  sftp file it's very slow but in download it's quicker,  tried to bypass the firewall (30E) and it's very quick. 

please help

thanks

[pkavin]

Hello,

Did you try plugging your computer directly into the LAN interface and accessing FortiGate's webpage?

Does it make any difference?

Also, does your LAN interface part of any software/hardware switch?

If it is part of any software/hardware switch, did you try removing a port and configuring it as LAN for testing?