Request timed out and This IP address is not allowed for use on a port

[studentOnly]

Edit: I also attached the file in this post. Thank you so much for helping me!

Edit: I am also encountering a "This IP address is not allowed for use on a port" error whenever I am setting the default gateway of the WRT300N wireless router as 192.168.169.254, which is the IP address of the 2621XM router. And after I click the ok button, it sets the default gateway back to 0.0.0.0.

Here is the screenshot:

I understand that the reasons of a request timed out error are:

1. Not having the same default gateway assigned to the PC as the IP address of the connected interface of the router. 

2. Having a firewall blocking the request

I made sure to not do those but I am still having this error.

So here's the situation:

Devices can ping the wireless router IP address 192.168.169.170

But they cannot ping / it results to request timed out when pinging:

192.168.169.254 (Router0)

10.11.12.13 (Server0)

172.16.18.19 (Server1)

It results just fine if i remove the wireless router and just use the router0 to connect the devices to the server, but I need to demonstrate a wireless connection so i used the wrt300n. So I am guessing that there must be something wrong with what I did with the wireless router?

I also tried adding an ip route via a next hop. I entered the following commands in Router0:

Edit: I did not add ip route after redoing the entire file.

Edit: I also tried switching the 2621XM router to a 2911 router, and it worked! But the thing is, I also have to use 2621XM router along with the wireless router... What did i do wrong? Why is it working with the 2911 router but not with the 2621XM router? I added a NM-1FE2W Module to the 2621XM to connect another server, is it because of that module?

thank you so much for helping me! 

[M02@rt37 · Accepted solution]

Hello @studentOnly 

To make it easy, delete all ip static routes on Router0 and add only one default route:

0.0.0.0 0.0.0.0 <ip next-hop>

with 

<ip next-hop>

 the IP address of the Wireless router Interface with the red circle ! Interface facing the Router0...

[studentOnly]

Thank you so much for taking your time to answer my question. Unfortunately, it didnt work for me... Upon redoing the network from scratch, I did not include the ip routing, did this, but it didnt work... I also tried replacing the 2621XM router into a 2911 router, and it worked! What could possibly went wrong, why did it work for the 2911 router and not to the 2621XM router? I added a NM-1FE2W Module to the 2621XM to connect another server, is it because of that module?

[Deepak Kumar]

Can you share your packet tracer file? Seems some silly mistake. 

[studentOnly]

Here is the file. Thanks in advance!

[M02@rt37 · Accepted solution]

Hello  @studentOnly 

You cannot have on Wireless router LAN and Internet Interfaces on the same subnet....that's why you have an error message box.

You need to configure "Internet" interface on the wireless router. You have just confugred LAN interface.

As example:

So configure Internet interfac with IP 1.1.1.1/30:

Configure Fa0/0 on Router3 the IP 1.1.1.2/30 + add static route on Router3:

ip rotue 0.0.0.0 0.0.0.0 1.1.1.1

PC should PING Router3 ans Servers from Laptop now

[studentOnly]

Yes, this is reallyy helpful! Thank you so much! Everything is now successfully connected and I can ping the servers! I have one question though, I tried entering other IP addresses, but it only worked with the IP address as 1.1.1.1 and the default gateway as 1.1.1.2? Can you please explain why? Our teacher taught us to always use the last host as the default gateway, but I can't enter 192.168.169.254 as the default gateway. I used that idea when connecting it to the 2911 router and it worked, but it didn't work on this 2621XM router. Thank you so much for helping me!

[M02@rt37 · Accepted solution]

You're so welcome @studentOnly 

You should have other subnet instead of 1.1.1.0/30. I use a /30 so the last IP host is .2, so i use the last one. But use an other subnet for that interco, dont use this public IP 1.1.1.x. Instead use 192.168.170.0/30 as example. .1 for wireless router and .2 for Router0. /30 is sufficient for thar interco, you only need 2 IP.

[studentOnly]

Wow ok I get it now, there are a lot of things that I still need to learn, thank you so much for patiently teaching this to me!

[M02@rt37]

You're so welcome @studentOnly