Ethernet Speed not going above 100Mbps with Jiofiber router

Do you have any heavy electrical equipment's? Are your Ethernet line running besides heavy electrical devices?
Probably noisy electrical devices are causing the auto-negotiation to drop speeds.
Today i decided to lay down the cat6 ethernet cable
Were you running the tests with cable wrapped around itself i.e. looped?
 
Do you have any heavy electrical equipment's? Are your Ethernet line running besides heavy electrical devices?
Probably noisy electrical devices are causing the auto-negotiation to drop speeds.
No, it's running along a corner of wall, without anything else
Were you running the tests with cable wrapped around itself i.e. looped?
Yes before it was looped, tho i tested with small 1M cables too , without loops.

Is there any way to check my mobo port , I don't see any physical damage, it's new too. but could be the issue