It’s been a few days since I started using the sv08 Max, and everything works great, except WiFi. I do get a static IP, and I’m always able to connect. However, the connection drops every few minutes. The clue I have is the printer display appears to show the printer switching back and forth betwen 5G and 2.4G. The printer is less then two meters aways from a router that covers the whole house, so I’m wondering if there’s some setting I’m no aware of. Please help total noob.
Gabriel
The SV08 can only use 2.4 to connect.
You can lock the Wi-Fi to either band from the SSH terminal command line.
Be careful if Wi-Fi is your only connection, a typo could break your ability to connect
OR (BEST CHOICE) run an ethernet cable and never worry again.
I got so fed up with the craptastic built in Wi-Fi I hardwired mine to my PC and used Windows Wi-Fi sharing* to make the 15 meter jump to my Router.
My wifi periodically drops too, but about once every 5 hours or so. I noticed the antenna is SMALL and now that I’ve added the enclosure for the 08 MAX I’m pretty sure it’s blocking enough signal to drop but has enough that I can still communicate and push 78MB large files to the machine just fine. I’m upgrading the antenna to a 12dbi dual band 2.4/5.8 Ghz antenna (you’ll need the SMA connector to have the pole sticking out, NOT the female version with a hole). Will see if that helps or not, I suspect it will. If not though, it’s a firmware issue/parameter choice thing…maybe…who knows…
I’ve owned this printer (version 2.1.9) for a year now; it has numerous flaws that the manufacturer ought to fix or optimize, and it’s complex to use—though with a bit of perseverance, you can get it working (or not) 
: it sometimes has a mind of its own. The printer’s overall configuration isn’t inherently stable.
Off Topic, In short—I won’t go into the details of all the problems:
I completely removed the feeder system; even though I’d managed to make it stable and quiet, it proved too problematic with TPU and other filaments. Another issue: excessive CPU (during printing above 3days) usage was causing print failures (the log showed a cutoff resembling a power outage), linked to incorrect screen and Wi-Fi settings (at least in my opinion).
Topic Wi-Fi .
My research led me to conclude that the factory Wi-Fi settings were wrong (access point enable , powersave not stable on realtek etc.); so, I removed that configuration, disabled power management for the Realtek chip, and turned off the connection restart function in the Sovol script (which could be an issue if the connection drops on an unstable network, but never mind that). For me, it works.
To eliminate processor overload ==>>
To fix screen in this file/etc/X11/xorg.conf.d$ more 01-dbbian-defaults.conf
replace Driver "fbdev" by Driver "modesetting"
to fix Wifi:
Disable standalone Wi-Fi access point
sudo systemctl disable --now hostapd.service
To get the Wi-Fi working ==>>
Disable powersave NetworkManager:
sudo nmcli connection modify <Your_SSID> wifi.powersave 2
sudo nmcli connection modify <Your_SSID> wifi.bgscan ""
and in this file /boot/script/connect_wifi.sh
between this lines
sleep 20
while [ 1 ]; do
insert exit 0 to bypass to reconnect loop
because at home, I was losing the connection every 5 to 20 seconds.
I kept the original antenna; the network must be 2.4GHz and WPA2.
hoping this helps.