What is the maximum distance running the lowest data rate for 802.11g?

The IEEE 802.11a standard provides a maximum data rate of up to 54Mbps.

Each AP in a mesh network runs the Adaptive Wireless Path Protocol (AWPP). This protocol allows RAPs to communicate with each other to determine the best path back to the wired network via the RAP.

The IEEE 802.11b and IEEE 802.11g standards both run in the 2.4GHz RF range.

The IEEE 802.11a standard provides up to 12 non-overlapping channels.

The IEEE 802.11b standard provides a maximum data rate of up to only 11Mbps, and you can be around 150 feet, maybe farther, depending on conditions.

The IEEE 802.11a standard provides a maximum data rate of up to 54Mbps, but you need to be close to the access point, somewhere around 65 to 75 feet.

The IEEE 802.11a standard's lowest data rate is 6Mbps, but it can run from a distance of about 175 feet.

Frame Relay, by default, is a non-broadcast multi-access (NBMA) network, which means that broadcasts, such as RIP updates, will not be forwarded across the link by default.

The key is "there are no free ports" on your router. Only Frame Relay can provide a connection to multiple locations with one interface, and in an economical manner no less.

PPP is your only option, as HDLC and Frame Relay do not support these types of business requirements. PPP provides dynamic addressing, authentication using PAP or CHAP, and callback services.