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I have a very strange problem where I can't ping a router acting as client from one pc but at the same thing I can from another pc which are both connected to the same router.

I have Router-1 (192.168.1.1). There are two further routers connected to this Router-1 and they are Router-2 (192.168.1.240) and Router-3 (192.168.1.242). There is a router acting as a client, Client-1 (192.168.1.250) which is connected wirelessly with Router-3 (192.168.1.242).

There are two PCs, PC-1 (192.168.1.10) and PC-2 (192.168.1.4). These are both connected wirelessly with Router-2 (192.168.1.240). Now I am able to ping Client-1 (192.168.1.250) easily from PC-1 but unable to do same from PC-2. On PC-2, I am unable to open the router page (192.168.1.250) when I type in the browser and when I try to ping the IP it says Request Timeout for icmp_seq.

A little update: I was trying to troubleshoot the issue myself too. When I manually define IP Address on PC-2, I am able to ping Client-1. But as soon as I set DHCP on PC-2 I am unable to ping Client-1 even though I am able to ping PC-1 at all times and able to ping all routers and even use Internet in both cases.

Small Diagram

I am completely confused and any help in this regard would be highly appreciated.

  • What about dhcp servers? Have you turned it off in all routers except in one of them? You only can have one dhcp server in a network. – Adrián Castiglione Nov 15 '14 at 22:53
  • Yes it is only enabled on Router-1 (192.168.1.1) – Saad Bashir Nov 15 '14 at 23:05
  • Routers, routers, everywhere and there was no schematic to see! You do realise that you need different networks between your networks? I would use 192.168.1.0/24 between Routers-1, 2 and 3. Then have 192.168.1.0/24 on the LAN side of Router-2 and 192.168.2.0/24 on the LAN side of Router-3. Run DHCP on Router-2 and in the DHCP server settings, set the gw address to that of router (1.0/24). You're breaking things by using the same network on both sides of the router. Next time, please post a little diagram.. :-) – captcha Nov 16 '14 at 3:47
  • I have posted the diagram. :) Well if Router-1 and Router-2 have same ip sequence then how can I have DHCP enable on both Router-1 and Router-2? Won't that create an ip conflict? – Saad Bashir Nov 16 '14 at 4:25
  • @captcha is suggesting three networks with DHCP only on the client facing sides. There won't be an IP conflict in that design. Why do you have three routers, but no networks to route between? Do you actually mean Wireless Access Point (WAP) but instead you have ADSL routers with Wireless trying to act as wireless-to-wired bridges? – TessellatingHeckler Nov 16 '14 at 4:46

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