Altman

Just sync the clock&date. I used ntpd -q -p 1.openwrt.pool.ntp.org and after that all woks just fine. See the terminal output below(notice the "Signature check failed" message in line nr 5): root@shark:/# opkg update Downloading http://downloads.hak5.org/packages/shark/1907//Packages.gz Updated list of available packages in /var/opkg-lists/1907_shark Downloading http://downloads.hak5.org/packages/shark/1907//Packages.sig Signature check failed. Remove wrong Signature file. Downloading http://downloads.openwrt.org/releases/18.06-SNAPSHOT/targets/ramips/mt76x8/packages/Packages.gz Updated list of available packages in /var/opkg-lists/openwrt_core Downloading http://downloads.openwrt.org/releases/18.06-SNAPSHOT/targets/ramips/mt76x8/packages/Packages.sig Signature check passed. Downloading http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/base/Packages.gz Updated list of available packages in /var/opkg-lists/openwrt_base Downloading http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/base/Packages.sig Signature check passed. Downloading http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/luci/Packages.gz Updated list of available packages in /var/opkg-lists/openwrt_luci Downloading http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/luci/Packages.sig Signature check passed. Downloading http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/packages/Packages.gz Updated list of available packages in /var/opkg-lists/openwrt_packages Downloading http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/packages/Packages.sig Signature check passed. Downloading http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/routing/Packages.gz Updated list of available packages in /var/opkg-lists/openwrt_routing Downloading http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/routing/Packages.sig Signature check passed. Downloading http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/telephony/Packages.gz Updated list of available packages in /var/opkg-lists/openwrt_telephony Downloading http://downloads.openwrt.org/releases/18.06-SNAPSHOT/packages/mipsel_24kc/telephony/Packages.sig Signature check passed.