Printers on different networks but we can still print to them

[curlyimac]

Hi Everyone,
I'm a bit stumped and not sure how to do this.
We have an Asus router with one PC hardwired to it.
We have a wireless network 1 and wireless network 2.
We have two wireless macs connected to wireless 2.
We have one printer on wireless 1 and one on wireless 2.

Now here's the issue. On our macs we can print to the printer on wireless 1 even though it's on a different network. How is that possible? I have UPNP turned off at the router.
They will not print to the printer on wireless 2. I can't figure out why.

 

[Tech9]

I can't figure out why.

No one can. Two wireless networks on an Asus router is not enough information to even start troubleshooting.

 

[curlyimac]

The route is th RTAX88u pro.
I've gone through all the settings making sure I have wpa2 aes security. I've got the router set up pretty securely I believe.
Edit* forgot to mention using Merlin firmware

 

[Tech9]

Without knowing what are the two wireless networks and how they are set it's impossible to answer your questions.

 

[curlyimac]

I'll try my best. Wireless 1 doesn't have the 2.5 and 5 ghz bands separate. The printer on that is old 2.5 g. Wireless 2 is 5g only. The printer on wireless 2 is 5g capable. The Mac's are connected using 5g.
Yet, they an only print on the printer on 1 which is 2.5. Doesn't make sense.

 

[Tech9]

The two Wi-Fi radios on your router are bridged by default with all devices on one network. Printer not working may not be router related issue. Network printers are usually discovered by IP address or by host name. You can try to remove and re-add the printer on the devices using it.

 

[PunchCardBoss]

@curlyimac , It sounds like you are using "Guest Network Pro" to establish your Wireless 1 and Wireless 2 VLANS.

I suggest you check your LAN > VLAN > Profile and check your "Port Isolation" for each of your VLANS.

How is that possible?

It is possible for a device on one VLAN to access a printer on another LAN (subnet) if "Port Isolation" is NOT activated. Likewise, it is possible to restrict communication between LANs (subnets) when "Port Isolation" IS activated.

 

[Tech9]

It sounds like you are using "Guest Network Pro"

Doesn't sound like Guest Network Pro is used to me. More information is needed.

 

[curlyimac]

@curlyimac , It sounds like you are using "Guest Network Pro" to establish your Wireless 1 and Wireless 2 VLANS.

I suggest you check your LAN > VLAN > Profile and check your "Port Isolation" for each of your VLANS.


It is possible for a device on one VLAN to access a printer on another LAN (subnet) if "Port Isolation" is NOT activated. Likewise, it is possible to restrict communication between LANs (subnets) when "Port Isolation"

Doesn't sound like Guest Network Pro is used to me. More information is needed.

I have them set up as guest networks yes.

 

[curlyimac]

Ah I see. I will have to check that setting.
Thank you. I didn't realize that was a thing.