My router is TP-Link Archer C3200 and I'm experiencing similar issue with recently purchased RE450.
- RE450 is loosing connection/its IP
- Described by buksvdl issues

There is a similar thread in this forum when they asked to attached RE450 system log. Thus, I've posting log (after shortly after RE450 reboot) from my RE450 (look at the ERROR). Note that all these times all lights on RE450 are blue. Sometimes I have to restart RE450 to get it going again. I will try to call TP-Link support but have a very little hope they will be able to solve it on the spot. I hope they would address this soon.

0 days 00:00:09 OTHERS INFO Booted the system.
0 days 00:00:14 DHCPS INFO DHCP server started
0 days 00:00:29 WIRELESS ERROR 2.4/5GHz failed the connection to the front end, due to: Connecting timed out.
0 days 00:00:29 WIRELESS ERROR 2.4/5GHz failed the connection to the front end, due to: Connecting timed out.
0 days 00:00:29 WIRELESS INFO 2.4/5GHz successfully association to the front end.
0 days 00:00:29 WIRELESS INFO Key exchange between 2.4/5GHz and the front end started.
0 days 00:00:29 WIRELESS INFO Key exchange between 2.4/5GHz and the front end succeeded.
0 days 00:00:29 WIRELESS INFO 2.4/5GHz successfully connected to the front end(MAC: ).
0 days 00:00:34 DHCPS INFO Received a discovery packet from
0 days 00:00:34 DHCPC INFO Sent a detection for DHCP.
0 days 00:00:36 DHCPS INFO Provided an offer for the client with ip
0 days 00:00:37 WIRELESS ERROR 2.4/5GHz failed the connection to the front end, due to: Connecting timed out.
0 days 00:00:37 WIRELESS ERROR 2.4/5GHz failed the connection to the front end, due to: Connecting timed out.
0 days 00:00:37 WIRELESS INFO 2.4/5GHz successfully association to the front end.
0 days 00:00:37 WIRELESS INFO Key exchange between 2.4/5GHz and the front end started.
0 days 00:00:37 DHCPC INFO Sent a detection for DHCP.
0 days 00:00:37 WIRELESS INFO Key exchange between 2.4/5GHz and the front end succeeded.
0 days 00:00:37 WIRELESS INFO 2.4/5GHz successfully connected to the front end(MAC: ).
0 days 00:00:38 DHCPC INFO Received a DHCP offer:Server ID is 54.Assigned IP address is
0 days 00:00:38 DHCPC INFO Sent a request for DHCP.
0 days 00:00:40 DHCPC INFO DHCP obtained an IP address
0 days 00:00:40 DHCPS INFO DHCP server stopped
0 days 00:00:41 DNS ERROR DNS probing failed, DUT can not get a dns server.
0 days 00:00:41 NTP ERROR NTP detection failed.
0 days 00:00:51 DNS INFO DNS detection succeeded.
0 days 00:00:51 NTP INFO NTP detection succeeded.
0 days 00:01:00 WIRELESS INFO Back-end wireless STA (MAC: ) successfully connected to 2.4/5GHz.

loosing connection is major problem with this, other users like myself have same issue, with no replay from tplink guys (would they pass this to forum)???

Model E450, Hardware V1, Firmware - updated RE450(EU)_V1_151203

I had a better connection with My ASUS router and in the same room where i placed the TP-LINK extender. I'm looking into sending this crap back.

Well this is one of the few support forums where Ive yet to see an answer or even a response from someone in the company showing they actually read these.

My re450 is having the same problems. I wont lose the connection to the extender but beyond the extender it wont connect to the internet or the network Im extending. Ive tried it with an auto ip and assigning a static ip to the extender. Tried it with the dhcp server on, off, and auto. Tried every possible combination of what connections to connect to and which to extend. For the most part it looks like it should work, if I login it shows everything is fine. However when I lose the net I connect to the router wifi directly and it starts to work again so it has to be an extender problem.

On a side note I have had other tplink extenders that never had this problem so Ive pretty much narrowed it down to this not working Not seeing any company response doesnt make me hold my breath for a firmware fix so I think I will get the powerline adapters when I get sick of this.

I sent both back. Opted for ASUS RT-AC87U - that together with my existing ASUS RT-AC68U should blast the signal to the moon and back. Goodbye TP-Link........

I had a similar loosing connection issue with another model (RE210). TPlink support told me to use fixed Wifi channel between my main router/AP and the extender. It has solved my problem.

As TP-Link support suggested, I have replaced/exchanged my (problematic) RE450 with the brand new one. Though, random "dropping off" connections are still CONSTANTLY happening. What actually seems happened is that wireless device (especially IP Cameras) is staying connected to RE450 but looses any communication to/with the router. Within the time that communication might be reestablished and device comes back on line. My router is TP-Link AC3200. Thus this was the primary reason I bought RE450 presuming that they will work in tandem perfectly. Apparently it is NOT the case. And I did try to use fixed channels on the router with no visible difference in stability. It seem for me, based on my experience talking to them, the TP-Link support is very "weak" in addressing such issue. I wish there developers will come up with some solution for it.
But at this point I really regret that I've spent a lot of money on the products that do not work as advertised.

I got it to work! Not sure what actually fixed it but I bought the ac2600 router and still had the issue. I usually set up either static ip's or dhcp reservations for my devices. Well what worked is setting the re450 to a static ip and going to dhcp on anything that would connect to it. Now I dont get the problem which wasnt that the device would lose connection to the internet but stay connected to the network. No idea how what I did fixed anything but somehow I havent had any problems since then.

have you solved this issue now? I tried to set my router's 2.4GHz wireless channel bandwidth to 40MHz, it solved my problem.

My RE450 is extending wireless range from my TP-Link Archer C3200. Thus TP-Link recently published a firmware update for C3200. After I've applied that update, communication became more stable with much less connection dropping issues. Though, both of these devices still need improvements. Maybe more on the RE450 side now. As I've mentioned previously, if I would know of such problems I would not buy TP-Link router and extender. I also would like to see a major improvement in the "system logging" as it is very generic now and apparently does not reflect any underlying issues there.