Losing connection with AC66U

[fiddlex]

Hi I am having a serious issue that happens every 2 days or so. I have a ac66u connected to a router/modem combo which is set in bridge mode so the ac66u handles all connections. I also have a RT-N66U as a wireless AP connected via powerline adapters. My issue is every two days or so I lose all connections and have to power off all my devices (Modem, AC66u, N66u) to regain my connection. I have no idea why this is happening could anyone help me out? I have a log file here from the AC66U. Thanks

 

[jlake]

When you lose all connections, check to see if you still have a wired Ethernet connection to ac66u and internet. Then check wired connection on n66u and see if you are able to access internet. That will help you isolate problem.

 

[fiddlex]

Thanks for the reply. I did test the wired connectivity of the AC66U and it was still not allowing any connections. I did not try the wired connectivity on the n66u but I noticed the WAN LED isnt on when this issue happens. The AC66u WAN LED appears to be on also.

 

[speedingcheetah]

U have a lot of these in your log:

kernel: eth2: received packet with own address as source address

It has something to do with the device connected to or through that port 2 on the router.

I did a quick google search...that is caused by improper IP addressing settings. I am guessing the second router needs to be set outside of the first routers DHCP range.


http://vip.asus.com/forum/view.aspx?board_id=11&model=RT-N66U+(VER.B1)&id=20121207094519603&page=1&SLanguage=en-us

 

[fiddlex]

U have a lot of these in your log:

kernel: eth2: received packet with own address as source address

It has something to do with the device connected to or through that port 2 on the router.

I did a quick google search...that is caused by improper IP addressing settings. I am guessing the second router needs to be set outside of the first routers DHCP range.


http://vip.asus.com/forum/view.aspx?board_id=11&model=RT-N66U+(VER.B1)&id=20121207094519603&page=1&SLanguage=en-us

Hi,

Thanks for the reply and looking at my syslog and searching for me. I have just changed the n66u outside of the AC66u Scope I am sure and that message is still appearing. There isnt anything plugged into the second ethernet port on my ac66u router if thats what it is refering to. I will attach screenshots of my n66u settings and range of the ac66u. The ac66u is set to 192.168.1.1 and the n66u is set to 192.168.1.2. I think i set the range of the ac66u DHCP server to 192.168.1.20 - 192.168.1.254.

Thanks again.

 

[jlake]

That conflict/error in log occurs when you use the same SSIDs. It may or may not be related to your problem. Search forum for more details/explanation. If you want to find out if that's the problem, then give all your SSIDs unique names.

You may have to use process of elimination when trying to determine what the problem is. Unfortunately that may include things such as temporarily taking your modem out of bridge mode and temporarily removing the powerline. You just have to use process of elimination to isolate the problem. Could be ISP,modem,router, powerline,AP, cockpit error, etc.... Hard to say.

 

[speedingcheetah]

That conflict/error in log occurs when you use the same SSIDs. It may or may not be related to your problem. Search forum for more details/explanation. If you want to find out if that's the problem, then give all your SSIDs unique names.

You may have to use process of elimination when trying to determine what the problem is. Unfortunately that may include things such as temporarily taking your modem out of bridge mode and temporarily removing the powerline. You just have to use process of elimination to isolate the problem. Could be ISP,modem,router, powerline,AP, cockpit error, etc.... Hard to say.

Its possible, but there are many people that use the same SSID's and do the "roaming" thing between AP's and don't have those messages. I personally haven't much experience with such environments.

 

[jlake]

Its possible, but there are many people that use the same SSID's and do the "roaming" thing between AP's and don't have those messages. I personally haven't much experience with such environments.

Asus in AP mode is a wired bridge. Newer linksys routers have "bridge mode" which is also a wired bridge. It's not a dumb bridge, but a smart bridge. I'm not a network engineer so my knowledge of the different types of bridges and how they work is pretty weak. It could even be some type of hybrid bridge. You'd probably have to talk to Asus to find out.

I just know that an asus in AP mode is a smart bridge keeping track of things on network and using same SSID will momentarily confuse it when roaming......and thus give you that error/conflict in log. I think the error in log is harmless but I can't say for sure since all my SSIDs are unique. (And I don't get those errors).

Linksys says don't use same SSIDs when using their new "bridge mode" or you'll get conflicts. It's not like old days of cascading LAN-to-LAN and synching things because that was just a dumb switch. The advantage of the new "bridge" is you can forward a port to a device connected to AP.

That error in his log is probably unrelated to his problem. But not 100% sure.

 

[fiddlex]

Yeah I can confirm that the error is just when devices are roaming between the two access points using the same SSID. What is the main reason to not use the same SSIDS but Unique ones? I like the ability to only have to connect once to my network but I will change it if its worth while. I have set the AP to 192.168.1.2 now outside of the scope and it seems to be ok for now but it has only been two days. If i remember correctly I had the issue when I had it in the scope and out of the scope. Should I have my AP(N66U) connected to my main router (AC66U) or the Modem itself?

Thanks

EDIT: Just to confirm my 2.4ghz and 5ghz bands have different SSIDs to each other, its just the router and the AP have the same SSIDs for each band.

 

[jlake]

Yeah I can confirm that the error is just when devices are roaming between the two access points using the same SSID. What is the main reason to not use the same SSIDS but Unique ones? I like the ability to only have to connect once to my network but I will change it if its worth while. I have set the AP to 192.168.1.2 now outside of the scope and it seems to be ok for now but it has only been two days. If i remember correctly I had the issue when I had it in the scope and out of the scope. Should I have my AP(N66U) connected to my main router (AC66U) or the Modem itself?

Thanks

EDIT: Just to confirm my 2.4ghz and 5ghz bands have different SSIDs to each other, its just the router and the AP have the same SSIDs for each band.

Yes, keep the N66U connected to the AC66u. Plug the ethernet cable in to the N66U's internet port (WAN port).

Powerline has a static IP address too?

Yes, it was understood how you originally had your SSID's.

If a few days go by, and you don't have any problems, then you can try same SSIDs like you had originally. (as long as you don't mind those errors in your log). As I said, I think the errors in log are probably harmless. But I guess you'll find out sooner or later if same SSIDs is/was cause of the problem.

Keep us posted as to what you find out.

 

[fiddlex]

Just an update its been four days since i set it as a static IP out of the scopes and connected the ethernet to the wan port of the n66u and its seems to be stable, its still not a long time of measure but its the longest its lasted without needing a reboot. I still have the same names for the SSIDs and that roaming error is still in the log but it doesn't affect my router in any way (I don't think so anyways)