Interhome!
Faça um comparativo com o seu e me diga o que difere. O MK é 2.9.51
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[admin@MikroTik] ip web-proxy> print
enabled: no
src-address: 0.0.0.0
port: 8080
hostname: "proxy"
transparent-proxy: yes
parent-proxy: 0.0.0.0:0
cache-administrator: "webmaster"
max-object-size: 4096KiB
cache-drive: system
max-cache-size: 80000000KiB
max-ram-cache-size: 358400KiB
status: stopped
reserved-for-cache: 28609536KiB
reserved-for-ram-cache: 2048KiB
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[admin@MikroTik] ip web-proxy cache> print
Flags: X - disabled, I - invalid
0 ;;; don't cache dynamic http pages
url=":cgi-bin \\?" action=deny