You should try to mount the antennas at the master office and the green house apart from metal exterior (for example by mounting them on the roof) to avoid too much interferences.

For a distance of 115m the TL-ANT2424B is overkill (it is usually used for kilometer ranges). A CPE210 or even better its 5 GHz version CPE510 would be much easier to align to the remote CPE than precise alignment of a paraboloic antenna with just a few degree of antenna beam width, especially on such a short distance.

CPE and WBS are different in respect to the antennas: a CPE has built-in directional antennas with 65° (CPE210) resp. 45° (CPE510) antenna beam width, while the WBS series can be used for different antenna types such as sector antennas, parabolic antennas and omnidirectional antennas.

jwtrexler wrote

Please tell me if I get correctly what you are saying: I am able to use the current TP-Link 2.4 GHz parabolic antenna mounted on my greenhouse as the remote antenna and, if I keep this configuration, my best option is to install the WBS210 as the Master antenna on the exterior of the metal shrouded Front Office Building, which houses the source/Master wireless router.

Although you could do this, I would not recommend the TL-ANT2424B on such a small distance. It's best to use two WBS or CPE over such a distance, since their antenna RF patterns perfectly match with each other. If you insist to use the TL-ANT2424B with a WBS210 on the remote side, make sure to adapt TX power of the device feeding the parabolic antenna to avoid overdriving the WBS210's radio.

Yes, the WBS/CPE or whatever needs to be hard-wired to the Ethernet port of the master router.

You're welcome. Definitely two CPE510 are much better solution. The 2.4 GHz band may be overcrowded so much that often full bandwidth can't be reached.