diff --git a/services/communication/atlasbot-deployment.yaml b/services/communication/atlasbot-deployment.yaml
index a0b3f05..0450f3e 100644
--- a/services/communication/atlasbot-deployment.yaml
+++ b/services/communication/atlasbot-deployment.yaml
@@ -29,7 +29,7 @@ spec:
             - name: MATRIX_BASE
               value: http://othrys-synapse-matrix-synapse:8008
             - name: AUTH_BASE
-              value: http://othrys-synapse-matrix-synapse:8008
+              value: http://matrix-authentication-service:8080
             - name: BOT_USER
               value: atlasbot
             - name: BOT_PASS
diff --git a/services/communication/guest-name-job.yaml b/services/communication/guest-name-job.yaml
index f6f1469..8d8149e 100644
--- a/services/communication/guest-name-job.yaml
+++ b/services/communication/guest-name-job.yaml
@@ -19,6 +19,8 @@ spec:
               env:
                 - name: SYNAPSE_BASE
                   value: http://othrys-synapse-matrix-synapse:8008
+                - name: AUTH_BASE
+                  value: http://matrix-authentication-service:8080
                 - name: SEEDER_USER
                   value: othrys-seeder
                 - name: SEEDER_PASS
@@ -39,10 +41,11 @@ spec:
                   NOUN = ["otter","falcon","comet","ember","grove","harbor","meadow","raven","river","summit"]
 
                   BASE = os.environ["SYNAPSE_BASE"]
+                  AUTH_BASE = os.environ.get("AUTH_BASE", BASE)
                   OTHRYS = "!orejZnVfvbAmwQDYba:live.bstein.dev"
 
                   def login(user, password):
-                      r = requests.post(f"{BASE}/_matrix/client/v3/login", json={
+                      r = requests.post(f"{AUTH_BASE}/_matrix/client/v3/login", json={
                           "type": "m.login.password",
                           "identifier": {"type": "m.id.user", "user": user},
                           "password": password,
diff --git a/services/communication/pin-othrys-job.yaml b/services/communication/pin-othrys-job.yaml
index a03e43d..a45f37a 100644
--- a/services/communication/pin-othrys-job.yaml
+++ b/services/communication/pin-othrys-job.yaml
@@ -22,6 +22,8 @@ spec:
               env:
                 - name: SYNAPSE_BASE
                   value: http://othrys-synapse-matrix-synapse:8008
+                - name: AUTH_BASE
+                  value: http://matrix-authentication-service:8080
                 - name: SEEDER_USER
                   value: othrys-seeder
                 - name: SEEDER_PASS
@@ -39,6 +41,7 @@ spec:
                   import os, requests, urllib.parse
 
                   BASE = os.environ["SYNAPSE_BASE"]
+                  AUTH_BASE = os.environ.get("AUTH_BASE", BASE)
                   ROOM_ALIAS = "#othrys:live.bstein.dev"
                   MESSAGE = (
                       "Invite guests: share https://live.bstein.dev/#/room/#othrys:live.bstein.dev?action=join "
@@ -48,7 +51,7 @@ spec:
                   def auth(token): return {"Authorization": f"Bearer {token}"}
 
                   def login(user, password):
-                      r = requests.post(f"{BASE}/_matrix/client/v3/login", json={
+                      r = requests.post(f"{AUTH_BASE}/_matrix/client/v3/login", json={
                           "type": "m.login.password",
                           "identifier": {"type": "m.id.user", "user": user},
                           "password": password,
diff --git a/services/communication/seed-othrys-room.yaml b/services/communication/seed-othrys-room.yaml
index 09dc1e8..06be4fb 100644
--- a/services/communication/seed-othrys-room.yaml
+++ b/services/communication/seed-othrys-room.yaml
@@ -20,6 +20,8 @@ spec:
               env:
                 - name: SYNAPSE_BASE
                   value: http://othrys-synapse-matrix-synapse:8008
+                - name: AUTH_BASE
+                  value: http://matrix-authentication-service:8080
                 - name: SEEDER_USER
                   value: othrys-seeder
                 - name: SEEDER_PASS
@@ -44,9 +46,10 @@ spec:
                   import os, requests, urllib.parse
 
                   BASE = os.environ["SYNAPSE_BASE"]
+                  AUTH_BASE = os.environ.get("AUTH_BASE", BASE)
 
                   def login(user, password):
-                      r = requests.post(f"{BASE}/_matrix/client/v3/login", json={
+                      r = requests.post(f"{AUTH_BASE}/_matrix/client/v3/login", json={
                           "type": "m.login.password",
                           "identifier": {"type": "m.id.user", "user": user},
                           "password": password,