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#16
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LAN Segregation
OG wrote:
LEGEND -- Internet ++ WiFi == Cat5 ---------- ROOM 1 BACK OF HOUSE ------ ISP -- ATT (internet + phone) ATT++Cam1 ATT++Laptop1 ATT==Switch1 1000Mb Switch1===PC (A) Multimedia Source Switch1==NAS1 ------- ROOM 2 FRONT OF HOUSE ----- Switch1==R20000 WiFi Router R20000++Cam2 R20000++Laptop2 R20000==NAS2 ------- ROOM 3 FRONT OF HOUSE ----- R20000==Switch2 1000Mb Switch2== PC (B) Viewer Switch2== Laptop3 Char presented an isolation method near the beginning of the thread. http://al.howardknight.net/msgid.cgi...1%404ax.com%3E I'm still trying to figure out, how comms from (B) to (A), are going through the ATT 10/100 port. The traffic does appear to go through the wired R20000 ports. But doesn't have to touch the ATT, unless some funky routing is going on which isn't shown in the picture. switch --- PC (A) --- R20000 --- switch --- PC(B) I wonder if the Wifi on PC (A) and PC (B), the radio on those is switched off ? Paul |
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#17
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LAN Segregation
Paul wrote:
OG wrote: LEGEND -- Internet ++ WiFi == Cat5 ---------- ROOM 1 BACK OF HOUSE ------ ISP -- ATT (internet + phone) ATT++Cam1 ATT++Laptop1 ATT==Switch1 1000Mb Switch1===PC (A) Multimedia Source Switch1==NAS1 ------- ROOM 2 FRONT OF HOUSE ----- Switch1==R20000 WiFi Router R20000++Cam2 R20000++Laptop2 R20000==NAS2 ------- ROOM 3 FRONT OF HOUSE ----- R20000==Switch2 1000Mb Switch2== PC (B) Viewer Switch2== Laptop3 Char presented an isolation method near the beginning of the thread. http://al.howardknight.net/msgid.cgi...1%404ax.com%3E I'm still trying to figure out, how comms from (B) to (A), are going through the ATT 10/100 port. The traffic does appear to go through the wired R20000 ports. But doesn't have to touch the ATT, unless some funky routing is going on which isn't shown in the picture. switch --- PC (A) --- R20000 --- switch --- PC(B) I wonder if the Wifi on PC (A) and PC (B), the radio on those is switched off ? Paul The TV files are housed on (A) and viewed on (B); ATT not involved in that traffic directly (but because it is on the LAN it sees it? Since it is a 10/100 , as someone suggested in a post, device does that slow the overall LAN traffic?) Something is flooding the LAN with data and going to or from the ATT; this traffic kills the TV file viewing so if I unplug the ATT Cat5 to the rest of the LAN the LAN speed goes to full speed. Now this does not happen all the time when watching the TV files. But when it does it kills viewing. I have tried killing apps on the viewing PC (B) like NAS apps but got inconsistent results. WiFi on all devices is active and used. The IP address range is set to not overlap on the ATT and R20000. R20000 only acts as WiFi at that end of the house and as a Cat5 router. I am not familiar with the posted isolation suggestion and need to study it. Too much new terminology. My pea brain does not think I will understand it. --- news://freenews.netfront.net/ - complaints: --- |
#18
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LAN Segregation
On Tue, 24 May 2016 07:23:00 -0700, OG wrote:
The TV files are housed on (A) and viewed on (B); ATT not involved in that traffic directly (but because it is on the LAN it sees it? No. "Switched" networks don't work that way. Switches receive traffic on one of their ports and in turn they send that traffic out only one of their other ports. That's different, and much more efficient, than the old days where a "hub" would receive traffic on one of its ports and flood that traffic out each of its other ports. Hubs have all but disappeared now. I haven't seen one in at least 20 years. Since it is a 10/100 , as someone suggested in a post, device does that slow the overall LAN traffic?) Follow the path from PC(A) to PC(B). The overall speed between those two PCs will be the speed of the slowest link in that path. PC(A) is connected to Switch1 at 10/100/1000 Mbps (Pick one) Switch1 is connected to Switch2 at 10/100/1000 Mbps (pick one) Switch2 is connected to PC(B) at 10/100/1000 Mbps (pick one) If you picked 1000 for each of the links above, then the overall speed is 1000 Mbps. If any link was 100, though, then the overall speed is 100 Mbps. Something is flooding the LAN with data and going to or from the ATT; this traffic kills the TV file viewing so if I unplug the ATT Cat5 to the rest of the LAN the LAN speed goes to full speed. Now this does not happen all the time when watching the TV files. But when it does it kills viewing. I have tried killing apps on the viewing PC (B) like NAS apps but got inconsistent results. Every recent version of Windows includes a rudimentary network traffic monitor as part of the Task Manager app. It won't show you what kind of traffic you're looking at or where it's going, but it will show you how much traffic is flowing in/out of that individual PC. When you think the local connection should be quiet, look at Task Manager and see if it's really quiet. Do the same on both PCs, (A) and (B). If either of them is already dealing with a ton of traffic before you even start watching video, then your viewing will naturally suffer. With that info in hand, though, we can start to track down the issue. WiFi on all devices is active and used. The IP address range is set to not overlap on the ATT and R20000. R20000 only acts as WiFi at that end of the house and as a Cat5 router. Simple yes/no question: Does that R20000 have anything plugged into its WAN port? I am not familiar with the posted isolation suggestion and need to study it. Too much new terminology. My pea brain does not think I will understand it. I invited you to ask clarifying questions. :-) Question: can you rearrange the network so that PC(A) and PC(B) are connected to the same switch? Making them more local to each other can possibly help and certainly won't hurt. -- Char Jackson |
#19
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LAN Segregation
R2000 WAN port is empty. Only ATT has direct internet/phone connection.
Unfortunately my house wiring necessitates my current switch situation. These are dumb switches so I think that means they all do 1000 Mb on all ports. I did think about buying smart switches where I could program the speed of each port but did not follow through. I read somewhere that the switch capability, even those designated at 1000Mb, were actually more dependent on the "fabric" speed, i.e. the ability of the switch internally to give max speed for all traffic but I never found anyone specifying "fabric" speed. If there is no data flooding then the (A) to (B) speed is more than adequate. I used that previously posted LAN Speed program to check the (A) to (B) speed and it is obvious when flooding is or is not present. --- news://freenews.netfront.net/ - complaints: --- |
#20
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LAN Segregation
On Tue, 24 May 2016 09:58:10 -0700, OG wrote:
R2000 WAN port is empty. Good! Sometimes people connect the WAN port of the second router to a LAN port on the first router, but you've avoided that. Only ATT has direct internet/phone connection. Well, that wouldn't have given direct Internet access to the second router. It would only have resulted in you having two separate LANs that need to route to each other. You would have had a routed network rather than a switched network. You've chosen the simpler, preferred, approach. Unfortunately my house wiring necessitates my current switch situation. These are dumb switches so I think that means they all do 1000 Mb on all ports. No, dumb or smart only refers to whether the switch is 'managed' or 'unmanaged'. On the surface, it has nothing to do with the speed, although some managed switches may let you step the speed down. What are the make and model of your switches? I did think about buying smart switches where I could program the speed of each port but did not follow through. There's no reason to spend money on that. The primary purpose of a managed switch is so that the admin (you) can segment the switch into two or more logical switches. So far, I'm not seeing a use for that in your case, but the jury is still out. I read somewhere that the switch capability, even those designated at 1000Mb, were actually more dependent on the "fabric" speed, i.e. the ability of the switch internally to give max speed for all traffic but I never found anyone specifying "fabric" speed. Fabric refers to the internal chip that connects all of the switch ports to each other. You're right, that can sometimes be a bottleneck. If there is no data flooding then the (A) to (B) speed is more than adequate. I know what you mean, but in a switched network like yours there is no flooding. Switches don't allow it under normal circumstances. Normal traffic will have a single destination and will not be broadcast to everything on the LAN. I used that previously posted LAN Speed program to check the (A) to (B) speed and it is obvious when flooding is or is not present. Great! Which PC experienced the heavy traffic? You can use the Networking tab in Task Manager to see your connection speed and you can also see how much traffic is flowing. Check there, on both PCs, when the network is quiet and again when "flooding" is present. We should be able to find the culprit very quickly. -- Char Jackson |
#21
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LAN Segregation
Char Jackson wrote:
Well, that wouldn't have given direct Internet access to the second router. It would only have resulted in you having two separate LANs that need to route to each other. You would have had a routed network rather than a switched network. You've chosen the simpler, preferred, approach. With the ATT isolated (ATT thru wifi access only to the internet) by disconnecting the Cat5 to the first switch if have this situation: Laptop using wifi only connect, can see the ATT and the R20000 strong signal level but can only connect to the ATT (giving wifi to internet access OK) and cannot connect to the R20000 (to give me all the remaining LAN to PC and NAS access) Why is that? I do not think that is related to the flooding problems but is another problem. I used that previously posted LAN Speed program to check the (A) to (B) speed and it is obvious when flooding is or is not present. Great! Which PC experienced the heavy traffic? You can use the Networking tab in Task Manager to see your connection speed and you can also see how much traffic is flowing. Check there, on both PCs, when the network is quiet and again when "flooding" is present. We should be able to find the culprit very quickly. I will have to see, since when it was happening I tried from (B) to (A) and saw the "flooding" slowdown. When not "flooding" for (B) to (A) was fast; with ATT connected. With ATT disconnected I never see "flooding" and (B) to (A) is always fast. --- news://freenews.netfront.net/ - complaints: --- |
#22
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LAN Segregation
On Tue, 24 May 2016 11:58:31 -0700, OG wrote:
With the ATT isolated (ATT thru wifi access only to the internet) by disconnecting the Cat5 to the first switch if have this situation: Laptop using wifi only connect, can see the ATT and the R20000 strong signal level but can only connect to the ATT (giving wifi to internet access OK) and cannot connect to the R20000 (to give me all the remaining LAN to PC and NAS access) Why is that? All of the standard questions apply. Off the top of my head: 1. Is it the right SSID? This one is obvious, but I had to ask. 2. Are you being asked for a password? If not, it's possible that the wrong password is cached in the laptop and you should "forget" the R20000 so you can start fresh. 3. Are you using the right password? You wouldn't be the first person who repeatedly tried the wrong password. 4. Is there a mismatch in the supported WiFi standards? Not all WiFi is alike. There is 802.11a, 802.11b, 802.11g, 802.11n, and 802.11ac, all in fairly common use these days. So for example, if the laptop can only do 802.11b and the router can only do 802.11g, you won't be able to connect. 5. Can other laptops and devices connect OK to the R20000? I do not think that is related to the flooding problems but is another problem. Agreed, it's a separate problem. -- Char Jackson |
#23
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LAN Segregation
Char Jackson wrote:
On Tue, 24 May 2016 11:58:31 -0700, OG wrote: With the ATT isolated (ATT thru wifi access only to the internet) by disconnecting the Cat5 to the first switch if have this situation: Laptop using wifi only connect, can see the ATT and the R20000 strong signal level but can only connect to the ATT (giving wifi to internet access OK) and cannot connect to the R20000 (to give me all the remaining LAN to PC and NAS access) Why is that? All of the standard questions apply. Off the top of my head: 1. Is it the right SSID? This one is obvious, but I had to ask. 2. Are you being asked for a password? If not, it's possible that the wrong password is cached in the laptop and you should "forget" the R20000 so you can start fresh. 3. Are you using the right password? You wouldn't be the first person who repeatedly tried the wrong password. 4. Is there a mismatch in the supported WiFi standards? Not all WiFi is alike. There is 802.11a, 802.11b, 802.11g, 802.11n, and 802.11ac, all in fairly common use these days. So for example, if the laptop can only do 802.11b and the router can only do 802.11g, you won't be able to connect. 5. Can other laptops and devices connect OK to the R20000? I do not think that is related to the flooding problems but is another problem. Agreed, it's a separate problem. Before the ATT disconnect R20000 wifi and Cat5 worked. With ATT disconnected as described, two laptops that previously connected, one 5GHz the other 2.4GHz worked, WiFi Camera previously connected worked but now does not. May be something happened to the R20000???? But Cat5 from PC or Laptop to switch sees all on this portion of the LAN including other PCs and NASes. But then they do not go through the R20000. R20000 has only one Cat5 in/out and that is to the switch. Also, two Win 7 PCs and Laptop, hang, slow way down and the mouse jerks all over for several minutes when I try to connect them to the R2000 WiFI. Poor Win 7 programming??? Or??? All very frustrating. Yes I run virus scanners: Malwarebytes, SuperAntiSpyware, Spybot and Spyware Blaster. Win 7 PC has MS virus scanner. --- news://freenews.netfront.net/ - complaints: --- |
#24
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LAN Segregation
On Tue, 24 May 2016 16:30:20 -0700, OG wrote:
Char Jackson wrote: On Tue, 24 May 2016 11:58:31 -0700, OG wrote: With the ATT isolated (ATT thru wifi access only to the internet) by disconnecting the Cat5 to the first switch if have this situation: Laptop using wifi only connect, can see the ATT and the R20000 strong signal level but can only connect to the ATT (giving wifi to internet access OK) and cannot connect to the R20000 (to give me all the remaining LAN to PC and NAS access) Why is that? All of the standard questions apply. Off the top of my head: 1. Is it the right SSID? This one is obvious, but I had to ask. 2. Are you being asked for a password? If not, it's possible that the wrong password is cached in the laptop and you should "forget" the R20000 so you can start fresh. 3. Are you using the right password? You wouldn't be the first person who repeatedly tried the wrong password. 4. Is there a mismatch in the supported WiFi standards? Not all WiFi is alike. There is 802.11a, 802.11b, 802.11g, 802.11n, and 802.11ac, all in fairly common use these days. So for example, if the laptop can only do 802.11b and the router can only do 802.11g, you won't be able to connect. 5. Can other laptops and devices connect OK to the R20000? I do not think that is related to the flooding problems but is another problem. Agreed, it's a separate problem. Before the ATT disconnect R20000 wifi and Cat5 worked. With ATT disconnected as described, two laptops that previously connected, one 5GHz the other 2.4GHz worked, WiFi Camera previously connected worked but now does not. May be something happened to the R20000???? But Cat5 from PC or Laptop to switch sees all on this portion of the LAN including other PCs and NASes. But then they do not go through the R20000. R20000 has only one Cat5 in/out and that is to the switch. Also, two Win 7 PCs and Laptop, hang, slow way down and the mouse jerks all over for several minutes when I try to connect them to the R2000 WiFI. Poor Win 7 programming??? Or??? All very frustrating. Yes I run virus scanners: Malwarebytes, SuperAntiSpyware, Spybot and Spyware Blaster. Win 7 PC has MS virus scanner. I'm not sure if you answered any of my questions, so maybe we should leave this alone and focus on the other stuff. -- Char Jackson |
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