Solved

Linksys WAG54g router keeps closing my ports!

Posted on 2004-10-14
6
653 Views
Last Modified: 2008-02-01
I have a Linksys WAG54G router. I configure it to have ports 25 and 110 open for my Exchange server, and HTP for web.
However, it randomly seems to close almost all ports, mostly putting them in Stealth mode!
This will happen frequently through the day.

I may try to collect email via POP3 and find I get an error from the server. If I then connect to my server (through the router/firwall incidentally) and run ShieldsUp, I see the ports in stealth.
All I have to do is connect to the router from teh server, save the ort Forwarding settings (no need to change them first) and ShieldsUp will tell me the ports are open again.
POP mail will then download.

Anywhere from 10 to 60 minutes later, the ports will have closed again and I have to repeat the whole farce.

I have tried upgrading and downgrading the firmware to all the versions I can find on the Linksys ftp site, to no avail.

I thought Cisco were supposed to be good but this is frustrating me. The only answer Linksys can give is "take it back and replace it".

Any ideas?
0
Comment
Question by:NickRamsey
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
6 Comments
 
LVL 6

Expert Comment

by:Technicon-SG
ID: 12309868
Be aware that just because the Linksys routers now carry the Cisco label (as Cisco purchased the company last year)...the Linksys devices are still SOHO devices...the "take it back and replace it" suggestion is probally a valid one...if you would like a higher reliabiltity device...try the Netopia R910 (you can get one on ebay for about $90.00)...

or let me make another suggestion...If you have access to an older computer (486 will work...however I am running a P166/32mb/500mb) and a couple of network cards...you could build your own router (better than a store bought router).

http://www.smoothwall.org

http://smoothwall.org/about/

Smoothwall is a free download and really is fantastic software.  It is also easy to install and configure (it also has Intrusion Dection, VPN, Traffic graphs, Proxy, Port Forwarding, etc...)

I ran smoothwall for better that 2 years before I switched to Mandrake MNF (much the same except more difficult to setup...but with more features)

You should be able to get the PC for free (if you dont have one a friend probally has an old one laying around)..then it is just a matter of the network cards (you will need 2). Less that 10 bucks new but you if you have them...all the better. Once the software is installed and configured you won't need a keyboard or monitor connected to the unit. This is a fun project to work on and should be no hassle.  If you choose to go this route and need help...just post your issue.
0
 
LVL 79

Expert Comment

by:lrmoore
ID: 12310173
Have you disabled UPnP on the router?
If yes, then a replacement device may be in order.
If not, then disabling it might just be the ticket...
0
 

Author Comment

by:NickRamsey
ID: 12310720
I like the idea of a hardware firewall and the Linksys also has the DSL "modem" included. So although I have a spare PC and a couple of network cards, the idea of consuming the power and generating the heat of a PC just to run as a router is not entirely attractive. However, I may just do that as an exercise and see how well it works.

I have diabled UPnP. I may take it back as Linksys have advised, but just wondered if anyone had had this experience and found a version of firmware that worked properly.
Today I have the added fault that the WLAN feature keeps turning itself off so I am becoming more convinced of the "faulty hardware" diagnosis.
0
 

Author Comment

by:NickRamsey
ID: 12875797
I replaced the LinkSys junk with a Netgear and all works now.
0
 
LVL 2

Accepted Solution

by:
Lunchy earned 0 total points
ID: 14354317
Closed, 250 points refunded.
Lunchy
Friendly Neighbourhood Community Support Admin
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

New Server 172.16.200.2  was moved from behind Router R2 f0/1 to behind router R1 int f/01 and has now address 172.16.100.2. But we want users still to be able to connected to it by old IP. How to do it ? We can used destination NAT (DNAT).  In DNAT…
How to set-up an On Demand, IPSec, Site to SIte, VPN from a Draytek Vigor Router to a Cyberoam UTM Appliance. A concise guide to the settings required on both devices
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Suggested Courses
Course of the Month6 days, 3 hours left to enroll

626 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question