Because the Ip/DNS, or DNS is not registered or the server is not enabled the checkbox Allow Remote Requests
p.s. Do not forget even a moment that resolv NRM Winbox is solely using the DNS servers that are registered on the computer at this point. He Mikrotik resolved from those prescribed in the ip/dns and it so happens that the ping or trace to a certain resource by the domain name of the Telnet Mikrotik and Winbox different.
adella.Nien answered on March 19th 20 at 08:49
Because the domain name need to resolvit in ip, and microt does not
Well you Google for the ip pinguet why Yandex name?
Command-type ping [resolve ya.ru] work (may be slightly wrong syntax)