If you’re experiencing "bufferbloat" or lag spikes, check these three settings:
After you unlock your ZTE F670L, create a full backup: unlock zte f670l better
Root access is temporary if TR-069 is active. Within hours, the ISP’s ACS server will revert your changes. You need persistence. If you’re experiencing "bufferbloat" or lag spikes, check
Go to Local Network > LAN > DHCP Server . Change the Primary and Secondary DNS to: Google: 8.8.8.8 / 8.8.4.4 Cloudflare: 1.1.1.1 / 1.0.0.1 unlock zte f670l better