I am at my wits end.
I have Internet service from Comcast, and a Motorola MB6800 cable modem. Using a direct, wired connection between my PC and modem, I get about 175MB/s which is what Comcast says we should have. I add the Linksys WRT1900ACS in the path and the speed drops down to about 80-90MB/s.
What is strange is that earlier this year, we were getting 150MB/s from Comcast, which is/was our advertised rate. At some point during the year, and I don't know when, the speed dropped by a factor of two. I'm just now trying to find out why.
I had previously been running this firmware, installed on the date shown:
Aug 19 2018 openwrt-18.06.1-mvebu-cortexa9-linksys-wrt1900acs-squashfs-sysupgrade.bin Jan 30 2019 openwrt-18.06.2-mvebu-cortexa9-linksys-wrt1900acs-squashfs-sysupgrade.bin Jul 04 2019 openwrt-18.06.4-mvebu-cortexa9-linksys-wrt1900acs-squashfs-sysupgrade.bin
I don't know what could have changed that broke things. I tried the latest developer snapshot, but I can't seem to go backward to a previous 18.06.xx release - Luci won't let me log in, but my ssh connection is working fine.
I've disabled the WiFi ports in the router. I've pulled out all the clients except for this PC. I am not running SQM presently, because I did a clean install of the developer snapshot.
Here's a copy of my network configuation:
Hostname: LEDE Model: Linksys WRT1900ACS Architecture: ARMv7 Processor rev 1 (v7l) Firmware Version: OpenWrt SNAPSHOT r11189-33dd522f24 / LuCI Master (git-19.283.61921-dd6818e) Kernel Version: 4.19.78
root@LEDE:~# cat /etc/config/network config interface 'loopback' option ifname 'lo' option proto 'static' option ipaddr '127.0.0.1' option netmask '255.0.0.0' config globals 'globals' option ula_prefix 'fd42:8399:e947::/48' config interface 'lan' option type 'bridge' option ifname 'eth0' option proto 'static' option ipaddr '192.168.1.1' option netmask '255.255.255.0' option ip6assign '60' config interface 'wan' option ifname 'eth1' option proto 'dhcp' config interface 'wan6' option ifname 'eth1' option proto 'dhcpv6' config switch option name 'switch0' option reset '1' option enable_vlan '1' config switch_vlan option device 'switch0' option vlan '1' option ports '0 1 2 3 5' config switch_vlan option device 'switch0' option vlan '2' option ports '4 6'
Any suggestions as to what I can try to debug this? Thanks!!!!