I am having the same problems and it seems to coincide with my ISP renewing my WAN IP address. The log files show and IP being provided by the ISP with a lease time of 3600 and this is requested and acknowledg sucessfully for a period of time. When the ISP provied as new IP I can see the request for the original IP being sent and no acknowledgement being received the IP is then released and a discover request sent and a new IP provided but as this point the internet connection is lost. this is the section from the log:
2016-01-27 07:44:25 [5] DHCPC: Send REQUEST to server 2.127.238.5 with request ip ###.###.###.61
2016-01-27 07:49:58 [6] DHCPC: Unicasting a release of ###.###.###.### to 2.127.238.5
2016-01-27 07:50:02 [5] DHCPC: Send DISCOVER with request ip 0.0.0.0 and unicast flag 0
2016-01-27 07:50:03 [5] DHCPC: Recv OFFER from server 2.127.238.5 with ip ###.###.###.254
2016-01-27 07:50:03 [5] DHCPC: Send REQUEST to server 2.127.238.5 with request ip ###.###.###.254
2016-01-27 07:50:04 [5] DHCPC: Recv ACK from server 2.127.238.5 with ip ###.###.####.254 lease time 3600

I've opened a ticket with TP-Link and will see what happens

Hi all from Italy

Here same problem. But it came suddendly early january aftre 3 months of perfect usage. And now the led of internet goes off and my connection is down, sometimes up with led off, sometimes goes at a ridicolous rate. Investigating with My ISP nothing strange was noticed ISP side and when my connection is down they said the connection was up ISP side ... and was a problem of my modem. Actually i have to re-use my old Netgear DGN3500 and works perfectly .. Really Netgear > TP.Link ?????? Obviously i flashed all fw but nothing changed. The last one i flashed has only ggermany ISP List ..... Bad Bad Bad !

Plz Tp-Link do something !

I have fixed this error by entering my ISP's DNS servers into the following:

Select advanced tab
Select internet wan interface tab
Select editing of pppoa_0_38_1_d
Expand 'advanced' at bottom of page
Tick 'Use the following DNS Addresses'
Enter your ISP's primory and secondary DNS servers

e.g mine are: https://dnschecker.org/dns/United-Kingdom/TalkTalk

Once DNS servers are entered the basic page setting will show 'Internet connected'.

Hi all I have the same problem with D9 and telecom italia isp provider. The error is:

Please try to configure your DNS manually.

I try google DNs but nothing. I try last and old fw but nothing

Could you help me ? thank

I followed him, entering the DNS manually, still no luck. No the internet for wireless always disconnect and devices' network speed is ridiculously slow at some points. Need HElP!! C3150 archer right here.

I am having the same problem. Has there been any fix yet?

manually DNS? how does isp say about this?

grsc3p0 wrote

I have fixed this error by entering my ISP's DNS servers into the following:

Select advanced tab
Select internet wan interface tab
Select editing of pppoa_0_38_1_d
Expand 'advanced' at bottom of page
Tick 'Use the following DNS Addresses'
Enter your ISP's primory and secondary DNS servers

e.g mine are: https://dnschecker.org/dns/United-Kingdom/TalkTalk

Once DNS servers are entered the basic page setting will show 'Internet connected'.

Good find
Thanks

fatbottomgirl wrote

Good find
Thanks

I did this, didn't seem to make much difference.

Hi guys, you may try the below steps and feedback to support@tp-link.com.
1. Upgrade the firmware to the latest one and perform a reset.
2. Ping 8.8.8.8 in cmd on a PC and check the results. Change the DNS server manually to 8.8.8.8 or ISP DNS servers.
3. Check whether the web management page can still be logged in when the issue happen.
4. Whether a restart to the modem will fix the issue temporarily.

Send these information to support@tp-link.com, together with the screenshots of Status page, error message page and Network-->Internet page, System log and the status of lights when the issue happen. Engineers will help to analyze the problem.