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Can't print from cabled voip router to wireless router and printer

W

wjgollatz

Senior member
I am not network savoy, but I am having problems I should not be having.

I am set up this way:

[PC] --cable-- [VOIP ROUTER] --cable-- [wireless/cable router] --wireless-- [Printer]
pc is connected to a voip router, that is connected to a wireless/cable router. Through that wireless/cable router I have a wireless printer. I can only print to the wireless printer when my pc is connected to the wireless/cable router. I have access to internet through either router. The only way I can print when connected to the voip router to to email my printer through Epson's "email connect" feature.

voip router: Linksys RTP300
wireless/cable router: Linksys WRT54G
printer: Epson 845

Something is odd. When I do a network map, it seems switched. When I connected directly to the wireless/cable router, I get a map of my pc -> switch -> linksys -> internet; linksys-> printer. When I connect my pc to my voip router, I get a map of pc -> gateway -> internet.
 
If you want devices connected to the RTP300 to access devices connected to the WRT54G (and vice versa), the cable between the RTP300 and the WRT54G needs to be attached to a LAN port on the WRT54G and the WRT54G needs to have its DHCP service disabled.
 
I had a series of issues at the same time, and I don't know what the issue was, but it resolved itself. The moment I took your advice and and disabled DHCP, the router broke itself, no network through it, and could not even look up its setting pages, had to reset it. Had some problems then, but then comcast has some area outages. Could not print to the printer, and sometime later I was able to. Maybe the reset, and the many attempts at unplugging the router and cable did something when I was trying to diagnose the lose of network, then the loss of comcast.
 
It sounds like you might have 2 routers trying to use the same LAN subnet.

If we look at this setup from your PC perspective it is going to ask the VOIP router for a path to the printer. The VOIP router however doesn't have a LAN route to the printer. As far as it is concerned the printer is on the WAN side. However if they both have the same subnet, it doesn't know what to do with a WAN IP that is in the LAN range.

One solution would be to give them different subnets and set a firewall rule to allow traffic from that subnet to pass through to the VOIP LAN.

The better solution would be to not do routing on the VOIP router. If it needs something connected to its WAN port put it in bridged mode with a gateway as the wireless router. Otherwise disable DHCP on it and hook it up to the wireless router on a LAN port and let it just act as a switch.
 
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