Wireless bridge troubleshooting

Posted on 2004-04-18
Last Modified: 2012-06-21
I'm needing some help on a test project I'm working on.  I have setup 2 wireless bridges to accomodate a network link between a clients office and home.  This client has an office located approximately 500 ft. from a 120 ft. tower.  The clients house is 2 miles from the office location.  I have configured 4 D-Link DWL-900AP+ access points in bridge mode.  Bridge 1 is between the office and tower location.  Bridge 2 is between the tower and home location.  Bridge 1 access points are configured using channel 1 and IP addresses of &, Bridge 2 access points are configured using channel 6 and IP addresses of &  I have enable WPA-psk security on all using a passphrase.  I have also disable SSID broadcasting on all points.  At the clients office, there is a Linksys router with 8-port switch configured as a gateway for clients high-speed internet service.  It's IP address is  For the long distance bridge I installed a 24 Dbi parabolic ant. at each end, and for the short bridge I installed a 8 dbi panel antenna at each end.  I'm bridging from the office to the tower, and then from the tower to the house.  At the top of the tower I have the LAN ports on the 2 access points connected with a short patch cable.  In the office I have the access point connected to one of the ports one the Linksys router.  At the house, I have a single desktop computer connected to the LAN port of the access point.  All access points are set to a rate of 1-2 Mbps, which is the lowest setting.  Let me add, I have a good clear line of sight between the 2 long range points as well.  I have the 24 dbi ant. installed on a mast approximately 30 ft. high at the house.  There are a few trees between the 2 locations, but upon a visual inspection it should be clearing the tree tops by over 50 ft. easily.

Here's my problem:  Everything seems to be working fine from a pinging standpoint, and the home pc is also successfully retrieving its IP address, gateway address, and DNS server addresses from the DHCP service on the Linksys router at the office.  I can ping all IP addresses above successfully, but when I try to access the internet from the house location through the office Linksys router it starts loading the page, but then it stops and eventually times out every time.  I can even successfully ping using the -t option consistently for over 5 minutes.  Every once in a while it will throw a request timed out, but 99% of the time it replies successfully.  I have modified the performance settings of all the access points without success.  I'm starting to wonder if something needs to be changed with my TCP/IP settings (Receive window/MTU) or something.  Or do I need some additional hardware installed to make it work correctly.
Question by:choelt
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
  • 2
  • 2
LVL 16

Expert Comment

ID: 10862715
maybe see what kind of bandwidth you're getting - sure, you can ping, but loading websites will require more throughput...

install QCheck on a PC on each side, and see what you're may need to get an amplifier for the antenna, or a bigger antenna....2 miles is a bit more than these things are designed for, I believe...

Author Comment

ID: 10864673
JammyPak, thanks for the link.  I will try that tool out as soon as I can.  Maybe it will help me to determine what is going on.

Author Comment

ID: 10874021
I figured out the problem.  It worked correctly after turning off WPA-PSK authentication.  Apparently this doesn't work very well in bridge mode.  Basically, now it's an open system.  I will need to come up with some type of security interface(s) at each endpoint to keep prying eyes out.  Thanks for your help JammyPak.  That is a good, easy to use program.
LVL 16

Expert Comment

ID: 10877571
you should at least be able to use WEP, I guess...(I know I've used WEP in bridge mode with LinkSys devices....)


Accepted Solution

modulo earned 0 total points
ID: 10911375
Closed, 250 points refunded.
Community Support Moderator
Experts Exchange

Featured Post

Optimize your web performance

What's in the eBook?
- Full list of reasons for poor performance
- Ultimate measures to speed things up
- Primary web monitoring types
- KPIs you should be monitoring in order to increase your ROI

Question has a verified solution.

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

FIPS stands for the Federal Information Processing Standardisation and FIPS 140-2 is a collection of standards that are generically associated with hardware and software cryptography. In most cases, people can refer to this as the method of encrypti…
Trying to figure out group policy inheritance and which settings apply where can be a chore.  Here's a very simple summary I've written which might help.  Keep in mind, this is just a high-level conceptual overview where I try to avoid getting bogge…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor ( Top Charts is a view in which you can set seve…
Suggested Courses

636 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