Comtrend Ar-5319 User Manual

[Blanche Bunnell]

Firsttime posting to a forum, this is all very new to me, I hope I do okay. I normally find solutions to my own problems by searching, but I may have met my match. I know very little about networking and have struggled through a lot of information trying to find an answer.

I have recently subscribed to an ISP, and being on a tight budget I opted out of the wifi connection fee and $5 monthly wifi fee. I had a couple old DSL gateways laying around and I figured it would be easy enough to use one of them as an access point. The modem I received from my ISP (Ubee DDM3521) does not have a router. I believe it does not act as a DHCP server either, because I am being served a public IP address that belongs to my ISP. I was not given a PPP username or password, if they even exist for this account. How do I connect this modem to my router?

I have a choice between a Westell A90-750018, and a Comtrend AR-5381u to use as an access point, both of them are ADSL2+ gateways. The Westell has an uplink port, but it has very few configuration options. I have seen guides online showing useful menu options that should be on my model but aren't. The Comtrend is highly configurable, and I have had some success so far.

Now referring to Appendix E, manual part 2, starting on page 160. Here are the configuration options that I'm getting lost in. I have systematically tried a bunch of different combinations but to no avail.

What I have for current settings:

The ethernet interface connection mode is set to default mode.

For the WAN connection I have PPP redirect disabled.

I added the ethernet port 1 interface as the WAN interface.

I have the WAN service type set to IPoE. Jump to page 171, I have WAN IP set to static. Automatic didn't seem to work so I tried using the IP address, subnet mask, and gateway that I receive from the ISP when I plug my modem directly into my computer's ethernet port.

I have NAT enabled. I set the ethernet interface as the only default gateway interface.

I used static DNS IP addresses also taken from my computer when plugged into the modem.

First, set up an ethernet port on the router to accept WAN connection from cable modem:

1. Go to Advanced Setup

2. Go to Layer2 Interface

3. Go to ETH Interface

4. Remove any existing interfaces

5. Select Add, choose the ethernet port you want to connect your modem to, for Connection Mode make sure it is set to Default, and then save

Next, configure the WAN service:

1. Go to WAN Service (still under Advanced Setup)

2. Make sure PPP Redirect is Disabled

3. Select Add

4. Select the interface you just set up

5. Select IP over Ethernet and click next

6. Select Obtain IP Address Automatically and click next

7. Make sure NAT is enabled and click next

8. Set your newly configured interface as the default gateway interface and click next

9. Set the same interface as the selected DNS server interface and click next

All done! Now you can power cycle the cable modem and you should be all set. Be careful of power cycling, I learned that from this experience. I had been cycling the router without cycling the modem, but for this particular router model I can leave the router powered on while making configuration adjustments but needed to cycle the modem before the settings would take. It probably has something to do with how my ISP distributes the IP and DNS addresses. Feel free to correct me if I'm wrong and add any more important information I may have left out, like I said I am still pretty new to the technical details of computer networking.

To get access to your Comtrend AR-5319u, you need the IP of your device, the username and password. You'll find such information in the Manual of your Comtrend AR-5319u router. But if you do not have the manual for your router or you do not want to read the whole manual to find the default login information then you can use the quick guide below. To get to the router login page it's necessary that you are connected to the router.

Open your web browser (e.g. Chrome, Firefox, Opera or any other browser) Click HERE to auto detect your router IP. After some seconds our tool will show a link to your router login page. Click on the shown link. You should see 2 text fields where you can enter a username and a password. Check the bottom of your router. There you will find your login credentials. If not then have a look at the manual of your router. Enter the username & password, hit "Enter" and now you should see the control panel of your router.

Try different ID/password combinations that are widely used by Comtrend that you'll find below. In this list are the most popular default username and password combinations used by Comtrend. Sometimes the username and password doesn't work that we mentioned in the top of this guide. Then you can try these username/password combinations below to get access to your Comtrend AR-5319u wireless router.

Datasheet

Nothing of the methods worked for me and I still not get access to my Comtrend ! All you need to do is to reset your modem. This can be done easily by clicking on the reset button at the back or at the bottom of your router. If you hold down this small button for approximately 20 seconds, (you may have to use a toothpick), then your modem will get restored to the factory settings. What you need to keep in mind is that when you reset your modem, you will lose your connection online. It is therefore better to take an expert's assistance in this regard. Note: If you have not enough information, it is obviously recommended that you should get help from a person who has all the knowledge about this topic.

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