ASA 5505 speed reduction when connected to a Planet fiber converter

Question

Hi!
We have many customers running ASA 5505, and a number of them are running 100 Mbit connections. This normally works fine. But recently, our ISP has started setting up all new fiber connections using a Planet fiber to RJ converter (Before they used Cisco switches), and with those, the locations only get around 50-60 Mbit. We have done all the testing - force port speed and duplex settings, test with a PC directly connected to the converter etc. And the connection allways runs 100 Mbit. And the ASA's themselves also run 100 Mbit when connected to anything else than the Planet converter. We have for now circumvented the problem by placing a simple L2 switch between the converter and the ASA's, but this is not an ideal solution as it adds another single point of failure element etc.
Any ideas?

Answer 1

The Express units can extend wireless on the TC or each other.. but they cannot extend wireless on the Asus anyway..
So the setup is Asus--TC (that has to be ethernet) The TC in bridge mode.
Then TC -- express can be done by ethernet in roaming mode as bob listed above or extend wireless.
I am guessing.. what model are the express units.. they are older Gen1 N model ??
IMHO the TC is simply no longer viable.. replace it with one express as the AP and extend it with the other Express.. see if that works better.
But I would be trying to use the wireless just from the AC66U.
I would also force the Asus back to 20mhz on the 2.4ghz band.. so you can provide adequate channel separation.. 40mhz wireless on 2.4ghz works poorly anyway because you have too much wifi .. there is very limited number of non-overlapping channels.. ie 3. 11, 6 and 1.