Wifi Devices frequently dropped from LAN

gatorback

Regular Contributor
Code:
arp -a
MyQ-40F.XX.asuscommm.com (192.168.8.112) at <incomplete> on br0
thermostat.XX.asuscommm.com (192.168.8.113) at XX:YY:ZZ:72:ca:3a [ether] on br0

These two devices are frequently offline for extended periods of time. When arp command was issued the thermostat responded to pings, where as the MyQ device was non responsive (offline). Rebooting the router can vault the MyQ device online: is there a way to restart only DHCP or other services and not the router to put the MyQ device back?

Is there a technique to determine why these two devices (and not other devices) are bumped off the network frequently for long periods of time?
 
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pete y testing

Very Senior Member
it does sound like some sort of issue with dhcp and poss sleep / hibernate type issues

have you tried reserving the ip addresses for these devices in the router so they obtain and keep the same ip address every time , this can help with some dhcp connectivity issues
 

gatorback

Regular Contributor
it does sound like some sort of issue with dhcp and poss sleep / hibernate type issues

have you tried reserving the ip addresses for these devices in the router so they obtain and keep the same ip address every time , this can help with some dhcp connectivity issues
Good question: yes these devices are pinned to these LAN IP addresses and are consistently assigned the same IP address. Any suggestions to diagnose or 'reboot' DHCP from the command line are appreciated.
 

sfx2000

Part of the Furniture
Interesting point - these "Internet of Things" devices for the most part are offline, and opportunistic and event driven, so they're not online most of the time...
 

gatorback

Regular Contributor
Interesting point - these "Internet of Things" devices for the most part are offline, and opportunistic and event driven, so they're not online most of the time...
I would like these devices to be consistently available so that commands can be sent to them. The availability is very poor (< 25% unacceptable), but was not always this way until recently
 

degrub

Very Senior Member
I would like these devices to be consistently available so that commands can be sent to them. The availability is very poor (< 25% unacceptable), but was not always this way until recently
Are the ports "green" internet ? The device may require an always on port to maintain the connection.
 

gatorback

Regular Contributor
I don't think so: the LAN devices are home automation devices (thermostat / garage door opener). What does it mean to have to have an 'always on port': what does that look like on a router configuration page?

What's interesting is that there are 2 wireless Ubiquiti devices (2.4 and 5 GHz) which are in the same location as the MyQ device and it is has never presented this problem.

Useful command:

Code:
wl -i eth1 assoclist
 
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