My problem is even weirder: I have an express and a time capsule. (sie point: Both are set in bridge mode as I use a Speedport from Deutsche Telekom as the modem. The Speedport screws up the tables in both the aiports and also a mac itself. So I disabled the WLAN function on the Speedport. Worse still, the model number of the Speedport as well as the fimrware and if it is DSL or IP all make it behave differently. Deutche Telekom hasn't realised yet that MS isn't the only company in the worls and blithely ignores the mac world. So you get no help from them. This is an asid but if anyone need shelp on using Apples with Deutsche Telekom as a provider in Germany, post me a query.)
Back to this thread: I have a Mac and may wife a PC with W7. I have VDSL50 which is 50 MB/s download and 8 MB/S upload. Although the latency is a bit high at approx 33 ms, and the speed tends to go up and down a bit minute by minute I get close to my conztracted speed out the wire.
On my MAC I get about half thedownload and upload speeds from both the TC and the Express
On the PC I get about half thedownload and upload speeds from both the TC
On the PC I get a few hundred kbytes download but the normal upload on the Express
So the PC downloads more slowly from the one airport than the other, and this problem doesn't exist on the MAC! I have checked all the tables and can't find anything different. Really stumped and, although this is a PC problem, I'd appreciate help (although I really don't need any MAC-bigot statements!
Meanwhile here is my suggestion when debugging network issues like this:
1. Start at the ethernet connection. Plug in your PC to the ethernet at your modem. Run a test like my-speedtest , Make sure you also get a ping result to show the latency. If your down/upload speeds are as per contract then you know that your provider is not the problem.
2. Now connect wirelessly to your first wlan router. Perform the same speed test. Do the same with the second. Compare the speeds. What does it tell you?
3. Resetting the wlans and starting from the beginning is a good idea. Write down all the settings you want to make. Be sure to understand why. Shots in the dark like the IPV6 change above can solve a small issue but create a bigger one.
4. Check the settings in your Mac or other receiving device. Reset those to default or delete entries liek proxies which might cause a problem.