Is it normal for Download speeds to drop from round about 12000kbps when I connect through Router to about 4000kbps when through the Extender? though the connection in the corner by the clock says Excellent connection
Is yours a powerline adapter with wireless that creates a new wireless network, or is it one that simply boosts the signal of an existing wireless network? If you're not sure then post the TP-Link's model number.
There will be some reduction in network speed because the repeater has to receive and re-transmit packets of data. A 66% reduction in bandwidth seems far too much however.
When you're repeating or extending an existing wireless network then the general consensus appears to be that the extender needs to use the same wireless-channel number as the router so log into both units and check what they're set to. Or you can use a WiFi site-survey program like inSSIDer.
I know nothing about how these work. But we recently had fibre broadband installed - incorrectly, but I have another thread on that - and I had to purchase one of their 'AV220+ with pass through' kits, and all I can say is that there didn't seem to be any slow down at all. Because we had many engineers attending to our problems the last one corrected our setup so I do not need it now, so I can not do a test for you. Sorry, but I hope you can get your problem and speed sorted out. Persistence will work, keep on, and on,and on,and on at your ISP. It should work.
Just found this, "WDS may also be considered a repeater mode because it appears to bridge and accept wireless clients at the same time (unlike traditional bridging). However, with this method, throughput is halved for all clients connected wirelessly". and think it is my problem, I have not setup WDS in my router would it be better to do so?
but as its not setup it should not halve should it?
Channels are both the same, the Extender Settings are setup using a CD
Perhaps there's some wireless interference occurring in the vicinity of your extender/repeater - it could be caused by a neighbour's wireless router. Try changing your wireless-channel numbers. Because you're currently on channel 7, 1 and 11 are the other two you can use.