I have a small WiSP. The main site is connected to the 2nd site with SXT's in Bridge and Station Bridge mode using NV2 and all HT channels enabled.

Site 1 <> Site 2 is 2km connected at -48/-48 with 240 meg wireless connection. Bandwidth test between radios averages over 200 meg with no errors.

Router to Site 1 Bridge (same location) maxes out at interface (95 mbps).

Router to Site 2 loses around 25% bandwidth TO Site 2 and around 80% to site 3.

Showing a 14% loss of bandwidth from site 2 to site 3.

All sites are connected to each other using PtP SXT bridges using NV2. Longest distance is 2km.

It was my understanding that by using dedicated PtP bridges I would see very little bandwidth degradation, but that is not what I am seeing. All radios are set up in bridge mode with all ports and WLAN bridged. All clients connect using PPPoE, with the PPPoE server located at the main site.

How do I improve performance here.