Hello, I have a Bacnet / IP device that uses port 47808 UPD, I have connected it to a comtrend ar-5387un router, with a firmware openwrt-21.02.1 as access point
to try to access the device via wifi
I run into the following problem
to perform the communication protocol discovery I use the tool
"Another Bacnet Explorer" YABE
Let's say the Bacnet device has the following IP address:
IP: 192.168.1.200
Subnet mask: 255.255.255.0
Gateway: 192.168.1.1
Does not support DHCP
The router left it as it was configured by default and I only enabled Wi-Fi
I connect through the wifi that assigns me the IP 192.168.1.162 I try with the YABE tool to see the data, with negative results
I connect by cable to the router and access it
and I can read the data by cable and also by wifi.
Performing tests I have detected that:
I have no problem with the cable, it always works.
Through the wifi it only starts to work when I force it through the cable and then I can leave the wifi and it continues working, but when I turn off the router or restart it it forces me to start the communication with the cable again
I have also detected that connected only by wifi, I access the router's website and in the interface menu I make a modification adding or removing the information from the gateway
And when I magically save the changes I start to see the Bacnet but when I restart and try again, the above happens, the information does not appear forcing me to reactivate it with the change of parameters or via cable
Any ideas
Ok, I have also verified that if once I restart and connect via Wi-Fi I leave the tool active for 20 minutes or more, it ends up locating the bacnet device
because the wifi takes a long time and the cable is instantaneous?
Thanks