al-yeti Posted June 16, 2021 Share Posted June 16, 2021 (edited) Dudes an issue Setup is 32way NVR 1st floor 8way Poe switch + router 32way NVR gnd floor Remote Poe switch warehouse Remote Poe switch reception So every now and then all the cameras fed from the ground floor switches, will start to drop the cameras out , sometimes a few and sometimes all of them come and go It corrects, if you either disconnect the uplink from the warehouse switch or if you power cycle it , The cameras are affected on both nvrs at same time, other than that it sits quite happily, even when mixing a brand of nvrs it didn't make a difference one time there were three nvrs but problem persists, although I understand it seems as though it's not the nvrs at all ,just giving you extra info 20odd cameras but it occurs even with just 10cameras on system if we take some off What do you think? Edited June 16, 2021 by al-yeti Quote Link to comment Share on other sites More sharing options...
PeterJames Posted June 17, 2021 Share Posted June 17, 2021 Sounds like bandwidth, can you drop the bitrate on the cams a bit? Quote Link to comment Share on other sites More sharing options...
sixwheeledbeast Posted June 17, 2021 Share Posted June 17, 2021 I'd also be thinking bandwidth. Does it have it's own infra or are you on a network with other stuff? Are all the uplinks suitable for the bandwidth? Quote Link to comment Share on other sites More sharing options...
james.wilson Posted June 17, 2021 Share Posted June 17, 2021 And are the cameras happy dual streaming. Is the stream exactly the same to both nvrs Quote securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment Share on other sites More sharing options...
al-yeti Posted June 17, 2021 Author Share Posted June 17, 2021 3 hours ago, PeterJames said: Sounds like bandwidth, can you drop the bitrate on the cams a bit? You mean on the cameras themselves ? Or via NVR settings , cameras is possible yes 27 minutes ago, james.wilson said: And are the cameras happy dual streaming. Is the stream exactly the same to both nvrs Yes , setting the stream on NVR , or recording bit rates etc are the same , lowering one makes no difference Remember both nvrs will show the drops same time Quote Link to comment Share on other sites More sharing options...
al-yeti Posted June 17, 2021 Author Share Posted June 17, 2021 2 hours ago, sixwheeledbeast said: I'd also be thinking bandwidth. Does it have it's own infra or are you on a network with other stuff? Are all the uplinks suitable for the bandwidth? All the switches are linked together and a single point to the router Single cable going from warehouse to a gigabit switch from warehouse to first floor I should have said all nvrs and switches link to a gigabit switch first floor Disconnecting the warehouse switch above or at switch momentarily will solve problem until it decides to occur again My thinking was bandwidth , do you think syst.cpuld benefit with a dual uplink? As there is a spate network cable going from warehouse switch to first floor I could try and get a switch with dual uplink not sure how dual uplinks work tho? Quote Link to comment Share on other sites More sharing options...
PeterJames Posted June 17, 2021 Share Posted June 17, 2021 If you drop the bitrate alot at each cam and it fixes it then you know for sure its bw. If it does nothing its a dodgy switch or low uplink somewhere Quote Link to comment Share on other sites More sharing options...
al-yeti Posted June 17, 2021 Author Share Posted June 17, 2021 2 hours ago, PeterJames said: If you drop the bitrate alot at each cam and it fixes it then you know for sure its bw. If it does nothing its a dodgy switch or low uplink somewhere Ok will give that a gobut this might sound daft If I already have a cat5/6 cable 30m run connected to gigabit switches How do increase the uplink bandwidth ? With dual uplink switch? Quote Link to comment Share on other sites More sharing options...
PeterJames Posted June 17, 2021 Share Posted June 17, 2021 14 minutes ago, al-yeti said: Ok will give that a gobut this might sound daft If I already have a cat5/6 cable 30m run connected to gigabit switches How do increase the uplink bandwidth ? With dual uplink switch? Im not sure on dual uplink,never used one. But a dodgy switch can cause issues, like a motorway full of vehicles going into a single track Quote Link to comment Share on other sites More sharing options...
al-yeti Posted June 17, 2021 Author Share Posted June 17, 2021 8 minutes ago, PeterJames said: Im not sure on dual uplink,never used one. But a dodgy switch can cause issues, like a motorway full of vehicles going into a single track I get you I suppose 10gb switches are possible , but expensive Quote Link to comment Share on other sites More sharing options...
sixwheeledbeast Posted June 17, 2021 Share Posted June 17, 2021 A dodgy or misconfigured anything on the network "could" cause it. Have to try and isolate to narrow it down somehow. You should be able to calculate what bandwidth should be on each link if you add up all the equipment. I guess these are unmanaged switches so you can't look at logs or change any QoS/Bandwidth settings etc. Quote Link to comment Share on other sites More sharing options...
al-yeti Posted June 17, 2021 Author Share Posted June 17, 2021 9 minutes ago, sixwheeledbeast said: A dodgy or misconfigured anything on the network "could" cause it. Have to try and isolate to narrow it down somehow. You should be able to calculate what bandwidth should be on each link if you add up all the equipment. I guess these are unmanaged switches so you can't look at logs or change any QoS/Bandwidth settings etc. Correct all unmanaged But I get what your all saying , thanks for the guidance will look into it Quote Link to comment Share on other sites More sharing options...
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