Recently I changed my old router to a new gigabit router from ASUS. (And there was no other change to my audio system)
problem is … since then I can not connect to my NB.
What should I check for troubleshooting?
As the router is the only thing that has changed, that is the most likely cause of this issue. Does your Network Bridge connect directly to the router, or is it connected to a switch in between?
It would also be useful to know which model of ASUS router you are using?
The router is ASUS RT-AX82u. And I use switching hubs too (between the router and NB)
it is the new ASUS that causes the problem.
(When I switched back to the old router I have used, Mosaic and NB both worked normally)
So I think some new feature or parameter setting within the new router seems to cause the problem.
What should I check for troubleshooting?
YongSang, (strangely, it’s tricky to find the English Manual for your ASUS RT-AX82U Router! Nevertheless)…
Assuming your router doesn’t have any other configuration problems, the one main configuration that could cause problems of connectivity between Mosaic and your Network Bridge has to do with IGMP Snooping. Make sure the “Enable IGMP Snooping” configuration is Disabled**
You’ll find it within your Router’s config page as shown below;
If that’s already disabled by default, and you still have a problem, then step 1 to solving it is to ensure your Network Bridge has a proper IP address allocated to it (you can check from your Router’s “Network Map” page”) and verify that you can connect to the Network Bridge from any PC/Mac Browser.
Anupc, I’d like to thank you first.
For IGMP snooping, it was “enabled” so I switched to “disabled”. But still I could not connect to my NB.
And I checked the “network map” as you suggested and I found that my NB was not in the “client list”.
…
Thats good. Just to be sure, you might want to reboot both that Router and your Ethernet switches, so that all internal tables get flushed, and try again.
If you’re not seeing the NwB on the Router’s Client list, there’s some connectivity problem between the two.
Try connecting your NwB directly to the Router (instead of via the Ethernet switch) to start with, and verify everything is working as it should with Mosaic over WiFi and the NwVB directly to the Router.
Then try with the Ethernet switch in-place, but maybe different ports, etc. By the way, what brand/model is your Ethernet switch that the Network Bridge is connected to?
I reset the router and tried again starting with IGMP snooping. Suddenly this time it worked.
(the router provides dual transmission frequencies (2.4Ghz, 5Ghz) and I switched IGMP Snooping to “Disabled” for 2.4Ghz only. Is it related to the issues? )
Anyway…
Anupc, thank you very much for your help. 
Glad to hear it 
By the way, you can Disable IGMP Snooping for both the 2.4G and 5G WiFi interfaces in your Router’s configuration - that way you won’t have a problem if your Mosaic client device uses the 5G signal (.ac or .ax)
New home. New internet. Can’t get Lina to find the network or Mosaic to load.
What can easily solve this and please explain to me like I’m 5 years old 
Thank you!
Hey Judd,
Remain calm, we’ll fix this!
Please describe what your network looks like from the backhaul (point of entry in to your home) to the Lina and the remote (iPhone/iPad/whatever).
The first thing you can try for free is to turn everything off for a minute and then turn everything on one-by-one working from the modem (point of entry into the house) downstream strictly sequentially towards (and including) your Lina and your remote. Please try it and report back.
As well as the advice from @struts001, as you say all is new and as your device with the Mosaic app cannot find it or the network, does your device have wi-fi switched on and is the wi-fi password enabled?
Ok tried the power cycle sequence and Lina is still just showing USB vs network. Mosaic just spins and searches when I open the app.
My device WiFi is on and working. Thoughts? 
I have a WiFi router at the source of my service and hardline points throughout the house.
I am using a hardline Ethernet into the back of the Lina with no success.
I am afraid you may need to wait few hours as @struts001 is probably asleep ( it’s the middle of the night here in Europe).
So while you wait I suggest that you look at the first postings from 2020 in this thread. You will see that the solution to a similar problem to yours involved changing one of the default settings of the router. That may be along the lines of where this may lead so do you know how to open your router’s settings menu?
You mention connection at several points in the house. Are these points directly connected to your touter or do you use a MESH system ?
Directly connected to router, no mesh. Wondering if a mesh network might solve it?
Guess it’s wait until tomorrow but I’m super grateful for the help!
I don’t know how to open my router settings but I’m sure I can get some help if need be
A mesh extender system may make things more complex. I think not the way to go.
Glad you can get help . It is a simple thing to do using your browser but I won’t go further and I hope @struts001 doesn’t mind my butting in.
Hey Judd,
So it seems that your Mosaic remote (what are you running Mosaic on?) can’t see the Lina for some reason. The first question in my mind is whether the Lina and the remote are properly connected to the network.
The IP addresses have four parts 111.222.333.444. The first three should be the same for both devices (usually 192.168) and the last one should be different. Please can you post here which addresses they have?
I’m using my iPhone as the mosaic controller. When I checked the Lina IP it had none. Zero’s.
I’ll check the router and get back asap. Ty so much!
Router is Zyxel EX3510-B1
