@upick 

Its not flase advertising at all.  The industry standard is to advertise the maximum wireless link rate not the internet speeds.  Link rate is the speed at which the router will speak back and forth to clients on the LAN.  WAN speeds have too many factors involved and can never be gauranteed, the only thing with internet speed that can be gauranteed is the speed at which your ISP communicates to the router.  This is done through the physical ethernet ports.  The Archer C59 is limited by the fact it only has Fast Etherent ports or 10/100, which is advertised on the packaging.  This means no matter how fast the wireless Link Rate is your maximum internet speed is 100 Mbps. because that is the fastest connection that the WAN port supports.  

  @upick 

Because as i mentioned it is the internal link rate that advertised.  This is the was a router's speeds have been adverstised since, well forever.  A manufacture who gaurantees speeds is falsely advertising. A router manufacture can't gaurantee internet speeds because their product is only one facet of the equaition.  There is also the client, the ISP service, the ISP hardware, the ethernet cables and the individual enviroment. This is also even with linkrate we always say "UpTo"

You can also check your link rate very easily.  Connect your computer to the network in the case the 5GHz and then check the adapter's status.  It will show you a link rate.  This is the speed at which your client(PC) is comunicating with the router.  it will look like this:  

As you can see the speed (link rate) for this connection is 867 Mbps. Now my maximum link rate is on 5 GHz is 2167 Mbps so I'm not getting the maximum but that is because of my PC's network adapter is only capable of 1 Gbps and then the connection is going through a few walls.  

  @upick 

No its not.  Its the way each and every manufacture markets their wireless networking prouducts,be it a adapter, range extender or a router.  This is how its been marketed sicne these products first hit the market. To be clear, link rate is extermely important to user because the faster the connection to your router, the fast the potential connection to the internet is.  For instance if you have a router with gigabit ethernet port, your using Cat 7 cableing, to a Docsis 3.1 router on a Cable ISP with 1Gbps but your link rate to the router is on 100 Mbps you will likely be seeing speed around 50 Mbps.  unless you are right next to the router.  Maximum Link Rates are the only thing a manufacture can know before a router is purchased so that is why its marketed.  

Again to be clear the limitations for your particualr router the Archer C59 are due to the ethernet port capabliites and it is adverisized on the box that the ethernet ports are 10/100.  This means your maximum internet speed is 100Mbps.  There is nothing that is deceptive in the advertising that was presented to you. 

  @upick 

I undestand your frustrations, I really do.  But your thread's title and claiming TP-Link has done something sneaky, flase or otherwise shady is wrong.  We wanted to respond not to harp on this or as they say beat a dead horse with a stick, but because it's important to explain why the industry not just TP-Link advertises the way they we all do, and have.  Is it going to help you in your current situation?  No, because as we both have said your concern is a result of hardware limitations.  But, that said it will help you with future purchases.  My hope is that you know understand how to look at advertised speeds, regardless of manufacture.  The most important factor to look at on a Router is its Ethernet ports both WAN and LAN. With connections above 100 Mbps you want to see ports show 10/100/1000 or 1 Gbps or hire listed on the specifciations.  If you see 10/100 or Fast that router is not for you.   

Our response is also intended to inform other users who may have similar questions.  

I also understand that you did not same link rate wasn't important but you did say "no one cares about the "link speed". What is it good for?"  I was responding to this when I explained why it is important and why many users do care about it.  

Since your router does not help meet your current network need I would suggest looking at the Archer C6  You can find it here at Best Buy.  It is a relatively inexpensive Gigabit router and would meet the needs of your network.  https://www.bestbuy.com/site/tp-link-archer-ac1200-dual-band-wi-fi-router-black/6345931.p?skuId=6345931