SFP Speed Variance L009

Hi
I have a L009 Router and got a 2.5G SFP(Aocclink 2.5G-T)
it was detected i disables auto negotiation and set speed to 2.5 and the port came up on day 1 but after the second day.
the reported speed on the router is 2500Mbps but on my computer the speed is reported as 500Mbps
any tips?
i want to use this for a server so i want consistency.

What do you mean speed is reported as 500 Mbps ? That speed is from some kind of speed test ?

No. On the port interface(link speed) it should say 2.5G but it says 500 on windows and 100on esxi but 2500 on mikrotik