Please do something about the WiFi instability using the latest X1C firmware? The networking capability habitually seems to get periods of high latency and drop-offs. I installed a WiFi repeater to increase signal strength without success. Rebooting the router and/or printer brings temporary relief, but I’m having to do that with increased frequency. The X1C printer is the only wireless device on my network that exhibits this problem, out of approximately 40-45 devices. I don’t know if this is a hardware or a software issue, but it is definitely an issue.
40-45 devices on a WiFi network will cause a lot of collisions and retransmits. That’s a very busy WiFi channel. I don’t think even adding a “guest” network will fix you up because it’s still the same transmitter. Could try it though.
It may take another access point with its own wired connection to your router, on a different channel, and with few other devices competing. You’d want to be on a channel a few channels away from your current setup.
This may be way off but 40-45 radio devices could be why you are seeing drops, disconnects, etc. Also, the WiFi radio signals can pick up interference from microwave ovens and other devices that use the same frequency region.
3 Likes
Here’s an article that may help in explaining interference and possible cures. The Wifi antenna is right behind the lettering in the front of the printer. Make sure nothing is obscuring or covering that area towards the direction of the router or repeater.
1 Like
This.
I had to deal with too many IoT devices on my network. I was only using 20-25 devices, including the printer, and had drop outs.
Upgraded the router, 3 channels, assigned guest to the printer alone, and I haven’t had any issues since.
2 Likes
Im willing to bet only a portion of his devices are actually active at any given time. I would try and make a dedicated 2.4ghz channel. Thats how I fixed my wifi issues on my x1c. My router was set to auto assign either 2.4 or 5ghz and it caused issues. Bambu will suggest the same
StreetSports
2023-07-27 10:25:07
I had to connect to a Hotspot. After the firmware update, I no longer needed the Hotspot and normal wifi worked. I’ve read that it has to do with routers that automatically switch between 2.4ghz and 5ghz. I was able to set the Hotspot to 2.4ghz
Bambu Lab
2023-07-28 13:14:15
Hi there,
Indeed auto wifi switching can be an issue, which is why we recommend having a dedicated 2.4g SSID.
I bet you’re right, but they would likely not be synchronized in any way and traffic will come and go. OP doesn’t have the issue all the time it sounds like so could still be from traffic pileups. But some could also be data hogs. If someone else is streaming video over WiFi for instance.
OP could also look at quality of service settings for each device in the access point he’s using now and set priorities if those settings are available.
I’d bet if OP turned off all the other devices the printer would work well.
1 Like
I’m no stranger to networks. I’ve been working in the IT networking field for the past 40 years. I have worked as a Senior Network Engineer (for 14 years) in a major financial firm in NYC (Moody’s), as a Senior Data Communications Analyst at UPS, and most recently a Senior Network Engineer at Amazon. My home network WiFi network isn’t even a “flash in the pan” size-wise compared to some of the larger networks I’ve worked with. Seeing the WiFi network in an Amazon Fulfillment Center would have many of you in awe, just with the sheer number of devices. Damn near EVERYTHING there is wireless running on a meshed network. The 40 devices I have in my home network include smartphones, tablets, gaming consoles (3), smart bulbs and plugs, and a couple TVs. The network I use have runs on a TP-Link (AX5400/AX73) router with a SmartMesh extender (RE815X). The router itself has three radios, with one of those 5GHz channels dedicated solely to providing the link between the router and the extender. The WiFi coverage is excellent. All the devices on my network aren’t in use at the same time, as there are three people living in this house, and any given individual would be challenged to use more than two (or maybe even three) at the same time (assuming somebody might actually be using WiFi calling on a voice call, while simultaneously playing a game on a gaming console with a video streaming on a tablet - not likely). I’ve used a PC-based network monitoring tool to poll/report on latency and reachability of multiple devices simultaneously, and the ONLY device giving me grief is this X1C printer. The X1C printer has latency all over the place with frequent dropouts that seem to come and go on their own accord. A successful ping test I just performed (100 64 byte packets) resulted in this:
Ping statistics for 192.168.1.179:
Packets: Sent = 100, Received = 99, Lost = 1 (1% loss),
Approximate round trip times in milli-seconds:
Minimum = 3ms, Maximum = 933ms, Average = 156ms
Another ping test with 1500 byte packets looks like this:
Ping statistics for 192.168.1.179:
Packets: Sent = 100, Received = 100, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 6ms, Maximum = 126ms, Average = 19ms
For whatever it’s worth, the printer is printing right now, as these two tests were run.
When the printer becomes unresponsive, the ping tests show “Destination host unreachable”. A max latency of 933 in the first test is high (almost a full second), and the spread of 3ms - 933ms speaks for itself. I’ve seen response times in the 3000-5000ms range. The dropouts occur randomly, sometimes when the network would be expected to be “busy”, and other times when the network would be considered “idle” or “dead” (like at 2am-3am when the rest of the household is asleep). I could run another ethernet cable to the location of the printer and install a spare AP and add another 2.4Ghz WiFi network near it, but I’m not looking for a Band-Aid - I’m asking Bambu to fix their firmware so that us users don’t have to jump through hoops to get acceptable network performance from their product. Based on my own experience and the experiences of others who had similar issues and applied various forms of “Band-Aids” attempting to resolve their issues, it certainly appears to me that “something” on the network portion (either hardware, software, or a combination of the two) of the X1C in it’s current state is clearly flawed. Printer, router, and extender are all running the latest firmware as of today, 7/20/2024 at 2:12pm EDT (New York time).
A little later, same day -
Packets: Sent = 100, Received = 100, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 6ms, Maximum = 1766ms, Average = 89ms
Have you had a look at this topic: X1C Firmware 1.08 WiFi Issues
In particular the last post in there:
Hope it helps 
1 Like
Maybe not all that but it might have saved time had you said some of that in your original post. Unfortunately we don’t know peoples’ skill levels with this stuff or what they have already done unless you tell us. A lot of people won’t understand much of what you said - so if people don’t tell us that they have eliminated certain things or have skills in an area, we have to assume they don’t.
And your network may be fine with others streaming but we didn’t know about your connection or use habits because you didn’t say. I know on my network, until I upgraded our service, my wife could disrupt other things on the network with streaming.
What you did tell us was that you have a lot of devices on the same network. It’s more than a lot of people have and depending on connection and use could easily have been the issue.
It always helps if you have already done troubleshooting to state that and what steps you’ve taken and what you’ve eliminated. It will save everyone’s time as well as yours.
1 Like
Remind me why I attempt to help others…
2 Likes
I can remember when 9600 baud terminal lines were thought to be magic. We ran T1 lines between buildings, but the buildings were serviced by modems. The phone company did the T1 lines, but my tech guys did all the in-house wiring for every terminal. When I left the Cleveland Clinic around 1986, there were over 4,000 individually wired terminals. “Wireless” was just coming out of the dream stage. Cell phones were the size of two stacked bricks, had a separate handset like a desk phone and costs about $1,000 a month. 
1 Like
I received my X1C a few days ago, got it setup and running yesterday. Ran several prints last night and this morning, updated firmware this evening, and now it will not connect to wifi. The A1 that is sitting right next to it works with no issue, but the X1 does not. Any suggestions?
To eliminate the printer, or isolate the router, if you have a guest network attempt to connect to that. If the printer connects and is happy then it may be the 2.5ghz channel is crowded and the router prioritized something else kicking the printer.
If the printer doesn’t connect then you know it’s the printer. You can revert the firmware in Handy to see if the update was the cause.
Disabled WiFi Agile Multiband.
channel 13
Thanks for the advice. It turned out to be the printer. I ended up doing a factory reset and reconnected. It has been churning out prints ever since.
1 Like
I would pay extra to have an Ethernet port on the X1C. I don’t really need the dramatically more expensive X1E, though.
1 Like
Same here! WiFi is nice most of the time, but I’d definitely rather use a cable if that were an option. In order to get my setup to work reliably, I ended up installing a separate WAP just for the printer. On my regular WiFi, I kept getting crazy high latency and packet loss. I’d rather have an ethernet cable directly to the printer than this “bubble gum and duct tape” solution I’m riunning right now.