Region : UnitedStates

Model : TL-R600VPN

Hardware Version : V1

Firmware Version : TL-R600VPN_V1_130216

ISP : Cablevision

I just purchased the TL-R600VPN router to replace a D-Link DGL-4100 as I needed the gigabit WAN port for my 101/35 ISP. I noticed that after anywhere between 12-24 my downstream speeds drop down to around 60Mb/s and rebooting the TL-R600VPN restores the speed back to 101+ Mb/s. I have the latest firmware and even reflashed it to no avail.

I found this reply on Newegg.com from a TP-Link representative who suggested to someone else having the same problem that it is likely a router memory issue possibly related to firmware:

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We appreciate you taking time to try and review our product. We are sorry about the slow speeds that you are getting after 24 hours of up time. Usually the issue is in the firmware with the way it manages the memory. When you are using a bunch of network connections, your RAMM is being used. The RAMM should free its memory after a connection is closed. What you may be seeing is that the RAMM isn't actually freeing the memory and in fact slows down the system until it is reset. Doing a factor reset can help as was stated by our previous tech, and we even recommend re-flashing to the latest firmware which can be found at:
 http://www.tp-link.us/support/download/?model=TL-R600VPN&version=V1#tbl_j
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The link to the above Newegg.com thread is here: http://bit.ly/1b9VPJS

I emailed TP-Link support and it was initially suggested I simply return the router. I pressed for more info, pointing them to the Newegg.com thread about the same problem and was told it was NOT a memory issue, but was given no suggestion other than trying another router (my D-Link did not do this, but I couldn't get speeds faster than 94Mb/s downstream with the 100Mb WAN port).

Does anyone else having any thoughts? Is this a known problem with this router on 100Mb/s or faster connections?

Thanks,
Craig