I don’t see this issue discussed much anymore, so maybe it’s not as common as it was 1.5 years ago when I bought my P1S. However, I believe I’ve solved my wifi connection issues.
The solution for me appears to be disabling MU-MIMO on my router. On my TP-Link router, this is at the top of the Wireless tab in the web interface. Leaving OFDMA enabled seems to cause no problems.
I admit that there have been many times when I thought I had solved the connectivity problem. I thought I fixed it by changing security settings, Wi-Fi channel, channel width, and many others. But I have turned this setting on and off many times, and the printer seems to connect reliably every time I turn it off. If you have this problem, please try it and let me know if it helps.
Hopefully, someone who has more networking expertise than I can let me know how important this setting is for a home wifi network. Is it important enough that I should use a separate access point for the printer so that I can leave MU-MIMO enabled for the rest of the network?
2 Likes
If anyone does care, I switched my channel width setting to 20/40 MHz, along with the setting mentioned above, and it has seemed rock solid for two days. I had previously changed it to 20 MHz on the advice of TP-Link support.
I’m not going to call this a solution because, at this point, I think that’s just poking the bear.
These are my current wi-fi settings:
Edit: I’ve learned that OFDMA and MU-MIMO are specifically 802.11ax (WiFi 6) settings. Since I didn’t have that enabled on the 2.4 GHz band (again, on the advice of TP-Link Support), changing that shouldn’t have mattered. Somehow, I believe it still did. What’s more, I’ve enabled 802.11ax now, and the connection seems just as solid, but when I turn on MU-MIMO, it doesn’t want to connect.
LAST EDIT: I’ve had a support ticket open with Bambu almost since I bought my printer. Two weeks ago, they sent me a new AP board for my P1S. Since installing it, I have had no connection issues. The version number printed on the new board was higher than the one I removed. I’m not sure if that’s the reason it’s improved, or if the old one was just faulty.
I’ve returned my router’s settings to the more desired settings. (MU-MIMO enabled, 20 MHz channel width.)
Hi all.
I have experienced the same issues, which I addressed two months ago by following those procedures to fix them. I even turned off the 5G channel. (I have a Deco Mesh)
It was all fine until this weekend. The printer went offline once again on Sunday morning. A printer restart solved it; that was fine, since I used the time to do maintenance anyway. Then it lost the connection again on Sunday evening. Once again, restarting the printer was enough. Until yesterday (Monday).
The printer went offline just after it started printing, and I was unable to reconnect it for the rest of the day.
Mesh restart, local radio restart, printer restart, and WiFi configurations changed. Nothing brings it back, and I just went to bed, frustrated.
This morning, to my surprise, it is connected, like nothing had happened.
What is going on with our printers? I have many other IOT devices on my network that only work on 2.4 GHz as well, and I have never had any issues with their connection. I can’t believe it is related to the WiFi configurations.
While I came across this for a different reason there is some good info further down the page that might be of help.
P1 series WIFI/BT/LIVEVIEW troubleshooting
2 Likes
I’ve been battling wifi dropout the last 6 months using two different brand routers (DLINK and ASUS). The ASUS shows the printer stops responding so the link is terminated, sometimes comes back after rebooting everything and sometimes not. Tried every solution I could research with separate networks and channels / frequencies, but it seems the P series printers just have extremely low quality comms hardware. The cure I finally discovered is to connect the printer to a personal hotspot from my desktop computer (iMac) and share its hardwired internet that way. Has been flawless ever since.
There is nothing in the wiki or support page about the printer losing connection.
We are not facing issues related to getting connected.
The printer is disconnecting for no reason.
Not sure if you saw my message above, but since I installed a new AP board in my P1S, I haven’t had any connection problems at all. FWIW, the board I installed was a newer version than the one originally installed. I’m not sure if that means it was improved, or if my original one was just bad.
How was the registration process?
I have a spare board and hope I do not have to use but the wiki says the following and just good to know how it worked in the real world.
Information for the AP Board replacement
Please note that replacing the AP board will require help from our Customer Support team. Each AP board has a serial number which will need to be bound to the original SN of the printer.
The following information is required to be provided in your ticket, so the new board can be activated:
I guess I don’t quite understand what you’re asking. What the wiki says is what you have to do. It’s not difficult. Your printer will act a little weird, and you won’t be a able to update it’s firmware until they link the new board to your printer, but it does work. You can still send print jobs to it using LAN Only mode.
I’ll check this out. If a part replacement is required, the support should cover it and be provided with the warranty, right?
I think since he is asking about the registration process, he is asking how the support ticket part went… i.e. was it straight forward, how long it takes for them to get back to you, etc.
If it’s within the warranty period, and you can point to it being the problem, I would hope so.
