big snr margin

[Blantium]

I am having big snr drop from 27 to 6 even till I lose connection , don't know what to do
the phone line is connected directly to the router not to the wall
and since my router doesn't have monitoring ability so I will have to explain what I see when I try to monitor it my self

So it goes out like this

after a restart of the router I get :

1- 27

2 - 24 

then it starts going up and down like .2 so it looks like this

3- 23.8 - 24.2

and it goes on the same way till it reaches about 20 - 18

then it drops all the way to 10 then to 6 and starts going up and down then I lose sync then after a couple of minutes I resync with 6 - 7 then it would either go up to 10 and starts hanging around there or fails down under 6 and I lose sync

have tried 3 router , still same problem

............

and when I restart my router it goes back up to 27 and every thing repeats 

[Stefan1024]

Yes when the SNR dropps below 10dB you will most likely runn into a disconnect.

A fluctuation over time (seconds) of 5dB is normal for wireless signal strength since refelcion and interfernce changes all the time.

 

The device may activate a higher modualtion deep leading to a reduction in the SNR. Can you set the link speed manually? If yes set it to lowest possible value and try again.