If you must check server uptime (or any other information) systeminfo is an interesting command line tool (Windows builtin)
SystemInfo /s SERVERNAME| find "Boot Time:"
With previous command you could obtain remote server uptime information
Indeed concatenating previous commands, using &&, it will aggregate several server info "one shot"
SystemInfo /s SERVERNAME1 | find "Boot Time:" && SystemInfo /s SERVERNAME2| find "Boot Time:"
Consider that you might launch command line, locally, with AD account with enough permissions on remote servers.
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