G+_610GARAGE Posted March 1, 2016 Share Posted March 1, 2016 Mondays show got me thinking. I have 4 acces points. One on my router, one in a detached garage, and two others at opposite ends of the house. When I am streaming, generally music; if I go from one AP to another, the stream will drop out for about a minute. Sometimes longer. Is this because the switches have to rediscover where my phone is? I never really thought about it before but it does seem to only happen if I go from AP to AP or from router to AP. Going from AP to router never really drops. Link to comment Share on other sites More sharing options...
G+_Akira Yamanita Posted March 1, 2016 Share Posted March 1, 2016 Are they all part of the same network or do you have multiple networks? If you have multiple networks, that would explain it. If on a single network and you have switches with spanning tree protocol enabled, a port could go into blocking mode because the MAC address suddenly showing up on another port could look like a loop. However, most consumer grade switches don't support STP and would be off by default even if it did. Link to comment Share on other sites More sharing options...
G+_610GARAGE Posted March 1, 2016 Author Share Posted March 1, 2016 Akira Yamanita There all on the same network. Same subnet, same SSID, and same password. My core switch does have spanning tree enabled. But the traffic will always be going out the same port unless I'm connected to the router. But then it would never see the traffic as long as I'm on my router. So I don't think it would be STP. The rest of my switches are consumer level. Link to comment Share on other sites More sharing options...
G+_Akira Yamanita Posted March 1, 2016 Share Posted March 1, 2016 610bob The switch could still see broadcast traffic and any local traffic even when connected to the router. If your other APs are all behind a single port on your core switch, then STP (alone) wouldn't explain the issues going from AP to AP. Still, I suggest looking for blocking events or disabling STP on the core switch just to make sure that it's not a contributing factor. ? Link to comment Share on other sites More sharing options...
G+_Steve Martin Posted March 1, 2016 Share Posted March 1, 2016 While on the subject. Just how good idea is it to have multiple AP on the same SSID? I've often heard that is not a good idea, but the answers always seem to boil down to "because." Link to comment Share on other sites More sharing options...
G+_Akira Yamanita Posted March 1, 2016 Share Posted March 1, 2016 Steve Martin It's perfectly fine as long as they're setup identically setup and part of the same network. Some routers will put the wireless in a zone that is separate from the LAN, in which case sharing the SSID is not a good idea. Link to comment Share on other sites More sharing options...
G+_610GARAGE Posted March 1, 2016 Author Share Posted March 1, 2016 Akira Yamanita Looked at logs, didn't see anything. I disabled it anyway, but my stream still dropped out. Link to comment Share on other sites More sharing options...
G+_Akira Yamanita Posted March 2, 2016 Share Posted March 2, 2016 610bob Have you done any other testing from another system? For example, pinging the device while roaming to see how long the cut-off is. Link to comment Share on other sites More sharing options...
G+_610GARAGE Posted March 2, 2016 Author Share Posted March 2, 2016 Akira Yamanita I did last night. I had some odd results. I was running a ping test from a vm to my phone and a ping test from my phone to my router (at the same time). To my phone never dropped out. From my phone dropped out for about 20-40 seconds (can't remember :) ). I'll try pinging from my router to my phone later today to see what that shows. Link to comment Share on other sites More sharing options...
G+_Jason Marsh Posted March 4, 2016 Share Posted March 4, 2016 So, the APs are not running DHCP, leaving that to your core router? I'm surprised to see so much lag on the handoff, but I wouldn't expect it to be seamless unless you were using a set of APs that used a cloud- or locally- based controller, like UBNT's UniFi and other similar products. Link to comment Share on other sites More sharing options...
G+_610GARAGE Posted March 4, 2016 Author Share Posted March 4, 2016 Jason Marsh Yes, my router is the only dhcp server on my network. The AP's dhcp is disabled. I wouldn't expect it seamless, but I think it should be faster at switching over than it is. Link to comment Share on other sites More sharing options...
G+_Akira Yamanita Posted March 4, 2016 Share Posted March 4, 2016 610bob Do you have any other devices to test with? Some are just notoriously terrible at roaming. Link to comment Share on other sites More sharing options...
G+_610GARAGE Posted March 4, 2016 Author Share Posted March 4, 2016 Akira Yamanita Yea, thats a good idea. I'll walk around with my laptop and see. But I did have this issue with two of my phones. But it could be an android issue. Link to comment Share on other sites More sharing options...
G+_610GARAGE Posted March 4, 2016 Author Share Posted March 4, 2016 Well, that's annoying. Both my windows laptop and my android tablet worked. But both my current and my old android phone drops out. Oh... my router is 5ghz. Could that be why? The phone is hanging onto 5ghz for dear life and doesn't want to switch over until absolutely necessary? Link to comment Share on other sites More sharing options...
G+_Akira Yamanita Posted March 4, 2016 Share Posted March 4, 2016 610bob That could be the issue roaming between the router and the other APs. It doesn't explain the issue between the other APs though. Best practice is to give the 5 GHz band a different SSID, especially when you don't have the same support across all of the APs. This might not be an option, depending on the router. Roaming issues are common with various Android devices. Improvements have been made in the OS itself but it's still heavily driver and chipset dependent so it varies from device to device. ? Link to comment Share on other sites More sharing options...
G+_610GARAGE Posted March 6, 2016 Author Share Posted March 6, 2016 Akira Yamanita Thanks for your help. I think its a problem with android. I changed my ssid and I still have the issues. :( Link to comment Share on other sites More sharing options...
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