- Feb 1, 2007
- Dallas, Texas
- 00 4Runner | 02 919 | 87 XJ6 | 86 CB700SC
Some Arris modems have software issues with routing data. Internet/WAN to LAN routing is fine, but LAN to LAN is a problem - abnormally low transfer speed, sometimes high local latency, etc. Over here, cable providers using some Arris units turn the Wifi on the modem off and provide a separate Wifi router because of this issue. Check for firmware updates, but if that doesn't solve it the only workaround is to get a Gigabit Ethernet router and connect your LAN devices to that - basically just use the Arris as a modem only.What's with my wi-fi?
My 2018 Macbook Pro is in the same room as the cable modem (Arris TG2492s) I bought this week. Download speeds are fine, but copying from the MBP to another, older, Air resulted in transfer speeds measured in tens of megabits per second rather than hundreds. This was a normal Finder file copy.
The Air is currently pulling the same files straight from the NAS, achieving way faster speeds.
The NAS is on gigabit. Both the Air and Pro are on 5GHz.
*Why* the Arris cable modem/routers have this problem, I have no idea. They just do.