01-13-2014 12:51 AM
We have recently upgraded out network and Added x6 new AP 225 Access points, having upgraded the firmware to version 18.104.22.168-22.214.171.124_41506 i am still seeing alot of DHCP Timeouts?
Can anyone advise? The new versions of firmware seem to be causing this, The network seems alot more stable with previous versions however i was told to upgrade for compatability for the new access points.
Any advice on how to resolve this would be much appreciated.
01-13-2014 12:08 PM
01-13-2014 03:53 PM - edited 01-13-2014 03:53 PM
Just wanted to chime in I have a test deployment of 6 Ap225 and am seeing a lot of DHCP errors as well. They come from all clients and all Ap's. I have not seen any problems with clients getting address's. Its hard to tell exatly how many im getting as instant auto clears them every few minutes but if I sit and watch they role through every 4-6min. This is with only 3 or 4 clients as well so Im not exactly hitting them hard. I am having a lot of problems with reliablity as well, I was assuming it was because of the brand new AP's having some bugs but it may have more to do with the new firmware.
01-13-2014 10:45 PM
i do believe its to do with the firmware as we have IAP 135's in some of our colleges and i also see alot of DHCP timeouts on the latest version, if i downgrade to a previous version it seems to be ok you see a few alerts but not 30-40 which is what i am seeing now with these new IAP-225's.
01-17-2014 08:52 AM
I have raised a TAC Case for this now, Aruba have removed the above firmware version from their site as most likely they have bugs and have recommened i downgrade to version 126.96.36.199 to see if this resolves this issue.
I will reply back once i have done this.
Also Aruba say for large number of clients we should not use Virtual Controller assigned DHCP we should have a dedicated server?
01-20-2014 12:01 PM
I think we have the same or a very similar problem. We have a new Instant installation with 9 IAP-225 access points. The APs arrived with the 188.8.131.52 firmware. The first day was terrible with lot of connection issues. Then an attempted downgrade bricked the whole system, so it was restored to 184.108.40.206. After that trying various options like disabling client match, 802.11d/h, etc. we got to state where it is not perfect, but can be used with Macbooks. Today we upgraded to 220.127.116.11-18.104.22.168_41660, but it seems the same. Linux and Windows machines has serious issues. Sometimes they cannot reconnect only after using the hardware wifi switch on the laptop or rebooting the AP. We can observe higher than usual latency on the LAN (to the default gateway and the virtual controller) and sometimes high packet loss (over 10%). In the alert sections we can find the same DHCP timeout and Integrity check failure messages. We also have a TAC case opened by the distributor. If we won't find the solution very soon we will try to convert the system to a controller based one.