LTE Modem speeds twice slower on OpenWRT than Windows

[antoncycle]

@DIYprojectz

Windows laptop & desktop connecting to the device both have DefaultTTL set to 65 in OS, since they were originally tethered to a smartphone

See this post to create ttl 65 rule on nftables

Working Nftables Rule for TTL in 22.03

After searching for updated nftable rules for TTL, I came across these links: 1.) put this in /etc/config/firewall config include option path '/etc/firewall.user' option fw4_compatible '1' 2.) create the file '/etc/firewall.user' 3.) put this line in it: nft add rule inet fw4 mangle_forward oifname usb0 ip ttl set 65 4.) restart the firewall /etc/init.d/firewall restart Not much info is available yet on fw4 and I am still waiting for updates on the gl.inet x750 and opal to be up…

chain mangle_postrouting_ttl65 {
  type filter hook postrouting priority 300; policy accept;
  oifname "eth1" counter ip ttl set 65
}

chain mangle_prerouting_ttl65 {
  type filter hook prerouting priority 300; policy accept;
  iifname "eth1" counter ip ttl set 65
}

Is important in rule that the interface much how the modem is detected, on my case is "eth1" but it could be eth2 3 or usb 0 1 2 3