Fixing a network dead zone

[saf08g]

So I have one room in my house where we've been getting speeds roughly 10-20% of what we've been paying for.  The modem is roughly in the middle of the first floor, the computer is on the second floor plugged into a pod with two other pods plugged in through the house (one downstairs, the second one upstairs).  This is also not the first time this issue has come up, and for those two times, the fix was usually to replace the modem or add the pods.  Furthermore, we also keep getting the issue of renaming (network name adds a "2" regardless of whatever the network name is), so I'm guessing that it's more of a DNS issue.

Anyone got any better tips to help than the basic stuff?  I don't feel like having a tech come in again to replace the modem again since it's not even a year old.

[CCAndrew]

It’s possible the room is just too far away or there’s something in the walls or floors. Maybe add more pods or an extender.

[saf08g]

It's possible, but usually it's working fine for several months or so and then the DNS errors keep popping up.

Also I don't know if that explains why the network is renaming itself (or I guess adding a second instance, hence the "2").  The last time we called with an issue like that, the modem for some reason had faulty registration, where a tech over the phone was saying that it was identifying itself as a private modem when it was known that we got it directly from Comcast (like the one we have now).

[saf08g]

So I'm going to update this by saying that this has still not been answered.  At first I thought it may have been the modem possibly overheating, but after talking to a neighbor at 1:30am who has a medical device in his body that runs off WiFi, it seems like there's some sort of signal drain in my entire neighborhood.