No DHCP IP packet on 5GHz WRT1900ACS v2

Installing and Using OpenWrt
#1

Hi

I have a Linksys WRT1900acs v2 running LEDE 17.01.4

This last week the 5ghz is not sending a DHCP lease packet to the devices. I have no issues with the 2.4ghz.

I went through power cycling, rebooting to no avail. Hence I updated the router to OpenWrt 18.06.0-rc1 r7090-d2aa3a1b62 with the following:

opkg update
opkg install curl
cd /tmp
curl -LO http://downloads.lede-project.org/releases/18.06.0-rc1/targets/mvebu/cortexa9/openwrt-18.06.0-rc1-mvebu-cortexa9-linksys-wrt1900acv2-squashfs-factory.img
sysupgrade -F openwrt-18.06.0-rc1-mvebu-cortexa9-linksys-wrt1900acv2-squashfs-factory.img

Despite such, the 5ghz is still not sending DHCP packets. Any ideas of how I can solve this

Regards to all

Fab

#2

I'm not sure how to solve this, as I haven't taken the time to bother troubleshooting the why's, but I've always had this issue on the V1 since moving from DD to LEDE 17.01.4 over a year ago.

  • The V1 experiences the issue on all three branches (lede-17.01, openwrt-18.06, & master)

  • For example, on Windows 10, I always have to manually enter the SSID [it's hidden] and passphrase each time I want to connect to either radio, however I haven't checked to see if this occurs on the 2.4GHz network when it's not hidden.

I do know the WRT AC Series has had issues in the past with the 4.1.x and 4.4.x kernels and odhcpd, however I thought those had been resolved.