Solved

HP wireless MSM410 Access points showing not detected after controller reboot.

Posted on 2013-01-18
7
3,090 Views
Last Modified: 2013-03-02
I have a crazy problem going on and I cannot seem to figure this out. I have 2 HP controllers MSM760’s Teamed and about 194 HP msm410 access points. I currently have 3 VSCs (guest, BYOD, Managed). Yesterday one of the controllers supposedly locked up according to the new guy and he restarted both controllers because they are teamed and that’s what we have done in the past. After they restarted one of our campuses show red X’s on the access points. I can ping the AP’s so they are there but not showing up on the controller. Under controlled access points we have groups set up and each group represents a campus and when I select the group in question (Fry Campus) The first tab is discovered AP’s none of the Aps show up. When I select the configured Aps tab they all Say not detected and have red X’s by them. I CAN ping these Access Points. Now I was over at that campus and decided to plug one of the AP’s into a different port with a different VLAN and to my surprise it showed up on the controller and synchronized like nothing was wrong. Now that to me seems like a VLAN issue but I’ve been through the configs on the campus switches and I took my laptop over and plugged into the port where the AP was at before and I got internet access so I am completely lost. It seems now that the quick fix would be to create a new VLAN for the Access Points and go on but I would rather solve this issue. Any help ideas or simply a shove in the right direction would be greatly appreciated. I can post screen shots if needed.
Fry-Wireless-Issue.docx
0
Comment
Question by:gcdesktop
  • 4
  • 3
7 Comments
 
LVL 28

Expert Comment

by:asavener
ID: 38793886
Sounds like maybe an interface reset on the AP could be what fixed it.

What happens if you power cycle the AP, shut/no shut the switch port, or just unplug and plug back into the same port?

Is the VLAN firewalled in some way?
0
 
LVL 28

Expert Comment

by:asavener
ID: 38793898
I know that we've had problems in the past managing thin clients, because the management console communicates with them via multicast.  Maybe resetting the interface made it rejoin the multicast group.
0
 

Author Comment

by:gcdesktop
ID: 38794098
Thanks for the response. Power cycleing the APs do not work I tried that and ive also done shut/no shut on the switchport as well. They do not show up on the controller unless I move them to another VLAN. I know that sounds crazy. We have around 25 Access points at that school and they all messed up at the same time. They are all scattered out around the school in different switches but in the same VLAN. The two that I show up in the controller now were moved to another VLAN but I need to figure out why they do not work in the original VLAN. Thanks I hope im making a little sence
0
What Is Threat Intelligence?

Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

 
LVL 28

Expert Comment

by:asavener
ID: 38794152
OK....

So, routing appears to be OK, since you can ping the APs.

The only thing I can think of is that some sort of packet filter or firewall is blocking the management traffic.
0
 

Author Comment

by:gcdesktop
ID: 38811586
I'm working with HP on the issue. We don't have anything filtering internal traffic except maybe the controller. Something has screwed up the connection between the controller and access points on the one group but physically they should be able to talk.
0
 

Accepted Solution

by:
gcdesktop earned 0 total points
ID: 38926270
The DNS server was not functioning correctly and the DHCP scopes for the VLANS associated with the wireless did not have a secondary address therfore I could ping them by IP but they did not have internet capability. I added our backup DNS server address to the DHCP scopes in question and had imediate resolve. This work around gave us the time needed to solve the DNS issue and provided redundancy.
0
 

Author Closing Comment

by:gcdesktop
ID: 38944823
I solved the issue on my own however I did not have enough info to guide the others in the right direction. This turned out to be a server issue and not wireless.
0

Featured Post

6 Surprising Benefits of Threat Intelligence

All sorts of threat intelligence is available on the web. Intelligence you can learn from, and use to anticipate and prepare for future attacks.

Join & Write a Comment

Suggested Solutions

Title # Comments Views Activity
Cisco 1830 AP behaving wierdly 7 28
svg file 10 42
vMotion VLAN or just any IP address will do ? 8 39
Linux as a middle box 7 32
This is an article about my experiences with remote access to my clients (so that I may serve them) and eventually to my home office system via Radmin Remote Control. I have been using remote access for over 10 years and have been improving my metho…
Meet the world's only “Transparent Cloud™” from Superb Internet Corporation. Now, you can experience firsthand a cloud platform that consistently outperforms Amazon Web Services (AWS), IBM’s Softlayer, and Microsoft’s Azure when it comes to CPU and …
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…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

743 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

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now