Internet speed slow in router os 7.19 and up Hex refresh E50UG

[jaclaz]

There is a known issue specific to the new Hex (your E50UG) and also the new Hex S affecting ether1, see:

HEX S (2025) sfp datarate issue

Hi everyone, I’m experiencing an issue with a 2.5GbE SFP module in my MikroTik hEX S (2025). The module uses a Realtek chip and I’m seeing some strange behavior in terms of throughput: Download: Achieves over 1gbps, as expected for a 2.5GbE module. Upload: Capped at 100mbps, which is significantly lower than expected. I’ve tested multiple cables to rule out any cable-related issues but the problem persists across all tests. My suspicion is that the Realtek chip in the SFP module may not be f…

Hex refresh download speed

HI I have a hex refresh that i have connected to a 1G internet connection. the problem is that the download is only about 100M, but the upload is 940M. the ISP is connected to port eth1. i have the default configuration in use. isn’t fasttrack on by default? when i look at the IP/setting menu, fasttrack doesn’t show up as active. any ideas why?

If it works in 7.15.3 as expected, do not update to newer versions of RouterOS until the isssue has been solved in a new release.

Otherwise a workaround is to not use ether1 as WAN, but configure another port (let’s say ether2) as WAN.

Another mitigating factor may be using properly queues, see:

Hex E50UG

Hello. Need some help with router. Old HEX RB750GR3 - ETH 1 - WAN, ETH 5 - LAN , default config - speed from speed test ok - 1000Mbit/250Mbit New HEX E50UG - ETH 1 - WAN, ETH 5 - LAN , default config - speed 150-220Mbit What change or what is wrong with new HEX ? I dont use any PPPoe etc.