WhileI am not sure of this, I suspect that this is one of those - the printer accesses WIFI using the 2.4 Ghz, while your phone connects at 5.0 Ghz. (Since the mesh system allows you to access at either).
This will sound silly (but i have had so many devices that have this issue (It only matters when I am first setting something up. (After the initial setup, the 5.0 and 2.4 dont' seem to be an issue (except with Google Chromecast)
Okay, the 5.0 must be a little faster, but it doesn't do very well travelling through thick walls. the 2.4 Ghz seems adequate for me for everything - I don't notice it). So, how do i get my phone to connect at 2.4 Ghz? - in my house, if I go to interior stairways or my bedroom - press the Wifi button on my phone to turn it off, and press it again to reconnect - then it is at 2.4 Ghz). I can also do this by stepping outside my front door - or going in my driveway.
Now for me, I can tell if I am connected at 2.4 because the icon for casting to my google chromecast appears on things like Hulu, HBOPlus, DIsney, AmazonPrime) That icon does not even appear if my phone is connected at 5.0. (I know, I know - there shoudl be a way to tell which network I'm on, but I haven't found it). The google Chromecast thing is something that I only came across because I have 4 teenagers. And during covid - when we were all stuck at home, we upgraded our internet, and upgraded a home theater so everyone had something to do. But it was hit or miss on trying to chromecast to our large television. One time, one of the kids told me (Our large tv is in the basement near the modem and router) " Dad, if we go out of the basement, then the chromecast icon appears, and we can chromecast). I had a hard time believing that was true - but a couple of the kids confirmed it. THat was over a year ago, and I have verified that it is indeed true - many many times.
I now have dozens of smart plugs made by various manufacturers. We also bought an internet-ready washer and dryer and refrigerator. All of these require 2.4 - and I have used the same tactic on every single one of them during the initial setup. (For a while I would go outside and sit in my car to access the internet) - and then come back in to set up the device. SInce then I have learned where the spots are inside my house that will allow me to access the wifi at 2.4.
So, while I don't know for sure that your printer only connects at 2.4 - I am guessing that it does. 5.0 doesn't travel well through walls - and it doesn't travel as far. So you can go away from your house and try to find out where is the farthest away that your phone allows you to access your wifi. (That will be at 2.4). Once you are connected at 2.4 - it seems that your phone stays at 2.4 even if you come back into the house (at least for a while - I think eventually your mesh system will switch it to 5.0 without you noticiing). At least the google chrome works for a while from an alternate room, but then it doesn't (and I have to leave the room again to get back on the 2.4).
It would have been better (in my opinion) if they required two different network names - and forced you to choose the 2.4 or 5.0. . As it is, you have no way to choose the one you really have to be on.
As you write, the wireless clients can always access on either band (signal level permitting), this is not an issue at all. Even if a wireless client does see two, ten, or more BSSIDs with the same SSID network name - there is nothing wrong with it. Never was in fact. Just **** WiFi garbage (like many of these power plugs I'm afraid). That's why consumer and business Mesh have _one_ SSID on air, regardless if these are 2.4 GHz, 5 GHz, the new 6 GHz, or the 60 GHz bands.
It's industry standard to operate many access points on different bands using the same SSID to allow simple operations since the existence of the IEEE WiFi standards. Yes, we operate wireless networks for >> 20 years with such set-ups, replaced since several times "just" for technology updates. This is not something new to these consumer "Mesh" systems. And then there should be a way to bypass this show stopper message. A wireless client must be assigned to the SSID, and never limited to the BSSID (what certain IoC products still do, too - C is for Crap).
The only problem existing in reality was that certain dual-band consumer router wireless prohibited commonly used discovery protocols like IPv4 broadcast, Multicast, ... between the two bands and sometimes to the wired LAN, too. Here again: Router crap.
Lots of IoC have even worse "discovery" Apps "requiring" e.g. a mobile to connect to the 2.4GHz band. Completely irrelevant, just poor code. What technically happens by many WiFi discovery Apps is that these initial discovery stop is looking for some "hidden" default SSIDs (network names), creating a temporary connection to the not yet configured IoT, and pushing the correct config (SSID, security mode, and security key typically), then trigger a IoC reconnection, and return to the normal SSID. Here the "second" discovery step - on decent network devices fully transparent (IP broadcast, Multicast, or proprietay IP protocols). Explained many times - won't repeat everything here.
Hi
Update:
Got it working- you have to work out how to make the mobile network symbol stay on. This poster who made this help website has missed one important point.
When the lights are flashing intermittently from mobile wifi to internet wifi you THEN press the network button and it will cause a solid green light on the mobile wife symbol on the printer. I discovered this by accident after 3 hours
The poster says you just keep pressing the same button until it changes, thats wrong. You do step one until you get alternate flashing lights THEN you press network b utton once which causes the light to get a solid green on the mobile wifi symbol. Hope this helps
Youre in the US with a .com website
I am in Australia
You wouldnt think it would make a difference but another one hour later and there is no way to select that light to stay on the wirless mobile symbol . On my printer it just flashes back between the mobile symbol and the wireless network symbol and then both flash the same time several times then it stops flashing all together. I think your article only works for america
I find it fucking mind boggling that Epson sell this printer and it hasnt got an lcd display. The buttons just fucking flash. With much cheaper home printers having a lcd display it seems like epson not only give you cheap printing with the refill jnk but they have also skimped on making the fucking printer user friendly. I fucking hate this printer
By the left of centre doesnt anyone test their product any more. My printer decided to screw itself again, now it wont connect again, now I have to repeat this again. It doesnt even seem able to find the damned network it is sat right next to again. I have power cycled, I have sworn, I have pressed buttons, I am about to go into the garage and get the 15lb fault corrector and I will make damned sure I know why it isnt working.
Thank you very much. This was extremely helpful and saved me a lot of time. It worked all exactly as indicated. I was anticipating a lot of frustration getting the thing running, until I found this.
Again, thanks a lot!
I just bought an Epson L355 and cannot connect it via WiFi. The Epson support person came and still nothing. Anyone else have this problem? Have downloaded all the recent drivers. WiFi connected to my MacBook. Nothing happens to connect my laptop and the printer.
I found salvation with Stirling's suggestion of going through the System Preference menu on my Mac and deleting the 2550 icon from the printer/fax window then re-adding it, and thanks John, re-adding with 2550 Bonjour. My printer worked immediately. After twenty years working computers I'm dismayed by the neglect of, 1) a dedicated software CD, 2) the inability of plug & play or easy access to a simple resolution.
Thanks for the reply about my Epson problem. However, it still doesn't work. Have spent up to 15 hours over 3 days trying. Have had the Epson Tech guy to my house. Have been on the phone with the head of Tech in Jakarta for Epson, Have downloaded many things, Software Updates, new configurations, drivers. Followed many different instructions sent to me. BTW, I am not a novice with either Macs or installing printers.
But still can't get it to work. Am going to return it tomorrow. But for the sake of the Apple Support Community and Epson (I guess) the Epson L355 cannot be connected by WiFi to my MacBook Pro running 10.7.
In brief (believe me!) when I go through all the steps using a USB for set-up, it says "Connection Failed" and then gives me a list of Troubleshooting issues. None of them apply, i.e. yes my USB is plugged in, yes the WiFi router is working, etc. I "Try Again" and again and again. The red-orange light keeps flashing. Sometimes both the green and red light keep flashing but never do I get a solid GREEN nor just a GREEN flashing- the red is always there.
I have epson and having no issues connecting to wifi,how did you start first b4 plug to mac,first always just plug epson printer to power only, installed inks when request to do so and then when this done ,u then go to menu go find say wizard this is for connecting wifi and will ask u passwords from ur router ,u should know the code and when u hav done this then this scanning to track ur signals and when its complete and then u plug ur printer to mac,do not use epson driver(cd) provide,let mac do their own driver automatic then ur done.
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