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Forum Discussion
R6400v2 restricting incoming ISP signal
Help. I have an AC1750 (model R6400) Nighthawk router. 11 months old. Recently upgraded my internet service with ISP (Xfinity) from 100mbps to 600 mbps. Sadly this turned into a dissaster. My AC1750 is hindering the signal. ISP tech came out yesterday for 2.5 hours and confirmed incoming signal to house/modem (Motorola MB7621) is above 600. Hardwiring a laptop to the modem confirms a strong signal. Hardwiring to the router the signal at best is 190 mbps. When I switch to wifi I can get about the same signal strength via wifi at ~6 ft. away from router. Other devices in the house are no where near 190! Modem company confirmed all files are up to date and this device is working properly. I updated the firmware on the AC1750 yesterday and performed a full factory reset on both devices and reset the system. Still today I am only getting 190 mbps at best from the router. Any suggestions/solutions? I am not interested in paying for a 1 year contract with Netgear when I can used that money toward a brand new router (if that is the route I have to go, but not preferred). Again any suggestions or tips from the community at large would be greatly appreciated!
1 Reply
A couple things.
1. I'm impressed you're getting 600mbps out of the MB7621. xfinity only rates it up to 400mbps on their tiers.
https://www.motorola.com/us/mb7621/p
2. After the upgrade, did you try factory resetting the R6400? Maybe old settings are causing issues. During the install process, leave qos, access control, traffic monitoring, and parental controls all disabled. The R6400v2 is an base model gigabit router and when those process are enabled, it disables CTF and puts the burden on the cpu to inspect traffic. This will cause slow downs. And I've seen CTF not get re-enabled just by disabling those services and rebooting. You can try disabling them and rebooting but if it doesn't help, then try the factory reset/manual reinstall. (not from backup)
3. also make sure IPv6 is enabled.
4. what website are you testing on? have you tried different test sites/servers?
