Which will show you if IPv4 or IPv6 is going through your Mac from one
For example, have a look at the following command: sysctl -a | grep forwarding This may also cause loops within company or personnal networks very hard to diagnose. This may lead to huge difficulties to analyse even the simplest network trouble. You won't have any easy knowledge and control of this dual connectivity. Time different interfaces up on the same machine.
Packet capture for specific source-destination pairs will be helpful to pursue either problem further.I recommand you to never use a configuration where you may have at the same In Tabouli's case, we do not know the results of the ethernet connection to the TC7200, but using #3 (Synology test), if the packets can get to the NAS via the TC7200 (on the LAN and can be forwarded via the WAN interface to as per Tabouli #4), the ATC and the TP-Link behave differently. This problem is different than Tabouli's. Given #2, you have an ethernet connection all the way to the TC7200 (no WiFi at all) and it does NOT work, but if you eliminate the ATC, you have no issues per #4. Tabouli's topology (TC7200 TP-Link MBA), and yours (TC7200 ATC MBA) is very similar. I will not have a chance to do it for the next few days though :/ Have packets been captured at each interesting point in the topology to see where are packets drops occurring? netstat -s is probably worth looking at > such points. Click the TCP/IP tab then from the Configure IPv4 menu, select Using DHCP. If the right pane is grayed out, click the Lock icon in the bottom left corner to log in with administrator credentials. On the left pane, select your Ethernet card. On the System Preferences window, select the Network icon. The problem occurs only if connected through additional AP. From the Apple menu, select System Preferences. If the MBA has a wired connection to the Technicolor, does the problem still exist?
WIRED INTERNET CONNECTION FOR MAC AIR WINDOWS
A Windows machine and several iOS mobile devices work flawlesly for me. Has Wireless RF interference been ruled out for dropped connections? Instead of WiFi, if the MBA is cabled to the secondary AP, is the behavior the same? Unfortunately, Technicolor in router mode is required by my ISP. can the Technicolor be replaced easily by an Airport Express/Extreme, to repeat this test? If connected to WiFI served by Technicolor, the problem does not occur (even if the other AP is connected to the network). the Technicolor SSIDs, is the behavior the same ( poziom-k testing shows that a second AP causes problems). The problem will usually correct itself after 1-3 minutes (though the time is not consistent), and also gets corrected if I turn the MacBook Air's WiFi off and on again.Īny suggestions for what I can do to stop this problem? My test to see where the breakdown is occurring is to have four terminal windows up and running ping processes:ġ) ping to 192.168.0.1 (my router) - this always stays live, with essentially no lost packetsĢ) ping to an external address (I'm using 74.125.136.94, a address) - this is my main test for access to the internet and where I see ping failures (I'm also testing with pings to other sites when the problem is occurring to ensure it's not something on the remote end).ģ) ping to 192.168.0.13, which is a Synology NAS attached via ethernet cable to my main cable modem/router - this always stays live, with essentially no lost packets.Ĥ) a login to the Synology NAS, where I am also running a continual ping to 74.125.136.94, and this external ping does NOT fail when the one from my MacBook Air does, it stays live with essentially no lost packets.
WIRED INTERNET CONNECTION FOR MAC AIR FULL
I have a problem that my MacBook Air intermittently loses connectivity to the internet for extended periods (minutes) even though (a) the MacBook Air maintains full connectivity to my LAN at the same time through WiFi and (b) other computers connected to the cable modem/router maintain their connection to the internet while my MacBook Air has lost its connection.
I'm connecting to my home LAN via WiFi connection to a TP-Link 300M Wireless router that is setup as a switch (per instructions here ), which in turn is connected via wire (ethernet-over-power) to a Technicolor cable modem/router provided by my ISP (UPC in the Netherlands I can look up the model number of the router if needed, but it's two floors down right now and doesn't strike me that this is the cause of the problem). Hi, I am using a MacBook Air 11" (mid-2012) running OS X Mavericks (10.9.3).
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