SNTP underflow issue

RouterOS General
1

Hello
There seems to be an underflow issue in routerOS 6.38.5. The problem is located in SNTP page, where it is possible the time offset to be calculated incorrectly.
You may find the fault observation in the enclosed image.
error.PNG
This value is 0xFFFF F1CD in hexadecimal notation.
error2.PNG
Normally, 4 billion is a large value for time adjustment, but if we calculate the 2’s complement of that value, we get -3635, which is a more logical value.
error3.PNG
Please perform analysis based on that observation.

Thanks

2

So you had a -72 minute adjustment? In this case us is the unit for micro-second.

3

Hello idlemind

It was not a 72 minute adjustment, because it was running for a long time, having adjusted the clock already.

This observation occurs randomly throughout its normal operation.

Regards
Nick