Router cascade problem (Lan-to-Lan)

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eze9595

Nov 14, 2018
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Well i cascaded 2 routers via lan to lan. Lan connected devices are fine, but the problems come with wireless devices.
Both routers are the Arcadyan VR9517VAC22-A-OS-AM.

Both are from the ISP, they sent two for some reason and decided to use them anyways (they have 5ghz, and really good signal strength tbh), and both routers to have the same SSID's and passwords so my phone and laptop can freely roam between them.
The roaming works perfectly, but when my smartphone or laptop switch from router A to router B, router B stops communications with router A and thus, no internet (doesn't happen when switching from B to A and it last for 5 minutes).

- Checked IP configurations and everything is fine, so dhcp works fine.
- I tried to ping router A from B during this problem and i get timeout responses from CMD.
- It works perfectly if i use lan to wan, but i can't communicate devices in different routers (Steam In-Home streaming doesn't work due to PC's being unable to see each other, for example).

Any ideas people? I will post the solution as soon as i get it working in case anyone has the same problem.

If u need more info just ask for it!

Thanks in advance!
 
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Ralston18

Ralston18

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Oct 11, 2014
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Are you sure that only one router has DHCP enabled?

What IP address and subnet mask are assigned to each router?

On the first (DHCP router) ensure that the second router has a static IP reserved for it via its' MAC. The static IP should be outside of the 1st router (main router's) allowed DHCP IP address range.
 
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eze9595

Nov 14, 2018
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Same subnet, router A is 192.168.1.1 and router B is 192.168.1.102 and DHCP disabled. I can't assign a static IP unless that IP is inside the DHCP pool on router A, so i changed the DHCP pool range and added router B's IP address, but nothing changed.
It works normally after waiting around 5 minutes, always 5 minutes before the connected device can even ping router A.

 
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Ralston18

Ralston18

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Oct 11, 2014
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Is Router B's static IP of 192.168.1.102 reserved on Router A via Router B's MAC?

Not sure that I understand " I can't assign a static IP unless that IP is inside the DHCP pool on router A"

Static IPs should be outside of the allowed DHCP IP address range on Router A. What is Router A's current DHCP address range?
 
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eze9595

Nov 14, 2018
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10


Router A's DHCP pool range goes from 192.168.1.2 to 192.168.1.98. I tried to assign a static IP for router B, but it said that the static IP must be inside the DHCP pool range, and 192.168.1.102 is out of that range.
So i changed the pool range limit to 192.168.1.120 and it did let me set it up, nothing changed tho.
I know this is pretty weird...

 
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Ralston18

Ralston18

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Oct 11, 2014
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Weird indeed....

Take a closer look at that message or pop-up about the static IP being inside the DHCP pool range. There may be some other button or selection to tell the router that the desired IP address is to be static.

How many devices do you have? For the moment - I am going to use the device count as 10.

Leave 192.168.1.1 for Router A as is.

Configure the DHCP IP address range to start at 192.,168.1.10. and with 192.168.1.19. However to allow some extra DHCP IP addresses for guests I suggest that the DHC IP address range to end at 192.168.1.25 or an address or two higher as you wish.

Set Router 2's static IP address to 192.,168.1.2 and reserve that static IP for Router B via it's MAC on main Router A's configuration screens.

The Arcadyan Router's Manual should have instructions and router admin screens necessary to do so. However, I believe that you already know how to do what is needed.

All of my searches for the User Manual only presented Spanish versions. I attempted to look at the screens - just too small to make out details.

Take another look at it all. Do not feel obligated to start making changes. Key is to truly identify what is or has gone astray and then apply the appropriate solution.
 
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eze9595

Nov 14, 2018
9
0
10


I tried an older TP-LINK TD-W8960N v1 router, which didn't need anything more than disabling dhcp to work as intended. I was also gonna try DD-WRT or OpenWRT, but i couldn't find the original arcadyan firmware unfortunately.
The only way to make both Arcadyan routers work together is making a lan to wan connection, which indeed makes roaming work like a charm, at the cost of lan sharing.
The tp link does both, roaming and lan sharing without any problems, it just lacks 5Ghz support.
In conclusion, the arcadyan routers are made to be main routers, not to be any kind of bridge, even when i exchanged roles, it was exactly the same. I will get a good Archer tp link some day, they look really good.
Thank you very much for your answers and time! Have a nice day/night!
 
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