Archer C7 v2 keeps freezing up

Installing and Using OpenWrt
1

I have an TP-Link Archer C7 V2 and it is running OpenWrt 18.06.1 r7258-5eb055306f / LuCI openwrt-18.06 branch (git-18.228.31946-f64b152). The problem I'm having is that it will occasionally (about once a month) freeze up and I have to reboot it. After the reboot it works and then freezes up again.

I am technically savy enough to install openwrt but I have no idea how to troubleshoot this. What steps would I go about to determine what is happening with my router? Do I enable logging? Is there some monitoring daemon I have to enable? Any help would be appreciated. Thanks.

2

The System and Kernel logs are available in the System menu under the luci Status menu, and can also be obtained from the terminal prompt using the dmesg and logread commands provided you can still ssh into the router from the terminal. For example, from a command prompt (or terminal window in linux):

ssh root@192.168.1.1
root@192.168.1.1's password:

BusyBox v1.30.1 () built-in shell (ash)
[Open WRT Welcome Logo]

 -----------------------------------------------------
 OpenWrt 19.07.0-rc2, r10775-db8345d8e4
 -----------------------------------------------------
root@OpenWrt~# dmesg
[Kernel log will dump out....]

root@OpenWrt~# logread
[System log will dump out....]

You can also try installing collectd statistics to see what is going on as the router runs:

root@OpenWrt~# opkg update && opkg install luci-app-statistics

This will add a Statistics menu to luci and give you nice graphs of memory and cpu usage over time.

Good luck.

3

Thanks eginnc. The problem I'm having is that the router freezes up so I cannot connect unless I reboot. When I reboot the dmesg and logread are cleared, right?

4

Log in with ssh and run logread -f That way your terminal window has the log after it reboots.

5

Dos the same happen with 18.06.5 / 19.07.0-rc1/rc2 / snapshot?

1 Like