diff --git a/RELEASE.txt b/RELEASE.txt
index 07682d45c..ce989bf9b 100755
--- a/RELEASE.txt
+++ b/RELEASE.txt
@@ -33,6 +33,7 @@ This document describes the differences between v6.1.0 and v6.0.0.
 - fixed datastream disabling for eiger. Its only available in 10g mode.
 - m3 server crash (vthrehsold)
 - allow vtrim to be interpolated for Eiger settings
+- m3 setThresholdEnergy and setAllThresholdEnergy was overwriting gaincaps with settings enum
 
 
 2. Resolved Issues
diff --git a/python/slsdet/detector.py b/python/slsdet/detector.py
index 1efa837e5..c4618760a 100755
--- a/python/slsdet/detector.py
+++ b/python/slsdet/detector.py
@@ -1924,7 +1924,7 @@ class Detector(CppDetectorApi):
     def datastream(self):
         """
         datastream [left|right] [0, 1]
-	    [Eiger] Enables or disables data streaming from left or/and right side of detector. 1 (enabled) by default.
+	    [Eiger] Enables or disables data streaming from left or/and right side of detector for 10GbE mode. 1 (enabled) by default.
         """
         result = {}
         for port in [defs.LEFT, defs.RIGHT]:
diff --git a/slsDetectorServers/eigerDetectorServer/bin/eigerDetectorServer_developer b/slsDetectorServers/eigerDetectorServer/bin/eigerDetectorServer_developer
index d180ff497..c41f2ede9 100755
Binary files a/slsDetectorServers/eigerDetectorServer/bin/eigerDetectorServer_developer and b/slsDetectorServers/eigerDetectorServer/bin/eigerDetectorServer_developer differ
diff --git a/slsDetectorServers/eigerDetectorServer/slsDetectorFunctionList.c b/slsDetectorServers/eigerDetectorServer/slsDetectorFunctionList.c
index 0b936a856..0955523a1 100644
--- a/slsDetectorServers/eigerDetectorServer/slsDetectorFunctionList.c
+++ b/slsDetectorServers/eigerDetectorServer/slsDetectorFunctionList.c
@@ -2105,6 +2105,9 @@ int setDataStream(enum portPosition port, int enable) {
         LOG(logERROR, ("Invalid setDataStream enable argument: %d\n", enable));
         return FAIL;
     }
+    LOG(logINFO,
+        ("%s 10GbE %s datastream\n", (enable ? "Enabling" : "Disabling"),
+         (port == LEFT ? "left" : "right")));
 #ifdef VIRTUAL
     if (port == LEFT) {
         eiger_virtual_left_datastream = enable;
diff --git a/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c b/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
index 519080e97..9450d01f5 100644
--- a/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
+++ b/slsDetectorServers/slsDetectorServer/src/slsDetectorServer_funcs.c
@@ -8266,9 +8266,6 @@ int get_datastream(int file_des) {
                 "Only left and right allowed\n",
                 arg);
         LOG(logERROR, (mess));
-    } else if (enableTenGigabitEthernet(GET_FLAG) == 0) {
-        retval = 1;
-        LOG(logINFO, ("Datastream always enabled for 1g\n"));
     } else {
         ret = getDataStream(arg, &retval);
         LOG(logDEBUG1, ("datastream (%s) retval: %u\n",
@@ -8315,14 +8312,6 @@ int set_datastream(int file_des) {
             ret = FAIL;
             sprintf(mess, "Could not %s. Invalid enable %d. \n", msg, enable);
             LOG(logERROR, (mess));
-        } else if (enableTenGigabitEthernet(GET_FLAG) == 0 && enable == 0) {
-            ret = FAIL;
-            sprintf(mess,
-                    "Could not %s. Disabling is only enabled in 10g mode.\n",
-                    msg);
-            LOG(logERROR, (mess));
-        } else if (enableTenGigabitEthernet(GET_FLAG) == 0 && enable == 1) {
-            LOG(logINFO, ("Datastream always enabled for 1g\n"));
         } else {
             ret = setDataStream(port, enable);
             if (ret == FAIL) {
diff --git a/slsDetectorSoftware/include/sls/Detector.h b/slsDetectorSoftware/include/sls/Detector.h
index 1f16b7269..91f420716 100644
--- a/slsDetectorSoftware/include/sls/Detector.h
+++ b/slsDetectorSoftware/include/sls/Detector.h
@@ -1147,8 +1147,8 @@ class Detector {
     Result<bool> getDataStream(const defs::portPosition port,
                                Positions pos = {}) const;
 
-    /** [Eiger] enable or disable data streaming from left or right of detector.
-     * Default: enabled
+    /** [Eiger] enable or disable data streaming from left or right of detector
+     * for 10GbE. Default: enabled
      */
     void setDataStream(const defs::portPosition port, const bool enable,
                        Positions pos = {});
diff --git a/slsDetectorSoftware/src/CmdProxy.cpp b/slsDetectorSoftware/src/CmdProxy.cpp
index c320f1435..a4c08c50c 100644
--- a/slsDetectorSoftware/src/CmdProxy.cpp
+++ b/slsDetectorSoftware/src/CmdProxy.cpp
@@ -1804,7 +1804,9 @@ std::string CmdProxy::DataStream(int action) {
     os << cmd << ' ';
     if (action == defs::HELP_ACTION) {
         os << "[left|right] [0, 1]\n\t[Eiger] Enables or disables data "
-              "streaming from left or/and right side of detector. 1 (enabled) "
+              "streaming from left or/and right side of detector for 10 GbE "
+              "mode. "
+              "1 (enabled) "
               "by default."
            << '\n';
     } else if (action == defs::GET_ACTION) {
diff --git a/slsDetectorSoftware/src/Module.cpp b/slsDetectorSoftware/src/Module.cpp
index ef2c1633c..517535279 100644
--- a/slsDetectorSoftware/src/Module.cpp
+++ b/slsDetectorSoftware/src/Module.cpp
@@ -214,9 +214,21 @@ void Module::setThresholdEnergy(int e_eV, detectorSettings isettings,
         myMod.iodelay = myMod1.iodelay;
         myMod.tau =
             linearInterpolation(e_eV, trim1, trim2, myMod1.tau, myMod2.tau);
+        // m3, reg is used for gaincaps
+        if (shm()->detType == MYTHEN3) {
+            if (myMod1.reg != myMod2.reg) {
+                throw RuntimeError(
+                    "setThresholdEnergyAndSettings: gaincaps do not "
+                    "match between files");
+            }
+            myMod.reg = myMod1.reg;
+        }
+    }
+    // m3, reg is used for gaincaps
+    if (shm()->detType != MYTHEN3) {
+        myMod.reg = isettings;
     }
 
-    myMod.reg = isettings;
     myMod.eV[0] = e_eV;
     setModule(myMod, trimbits);
     if (getSettings() != isettings) {
@@ -231,6 +243,7 @@ void Module::setThresholdEnergy(int e_eV, detectorSettings isettings,
 
 void Module::setAllThresholdEnergy(std::array<int, 3> e_eV,
                                    detectorSettings isettings, bool trimbits) {
+    // only mythen3
     if (shm()->trimEnergies.empty()) {
         throw RuntimeError(
             "Trim energies have not been defined for this module yet!");
@@ -311,6 +324,13 @@ void Module::setAllThresholdEnergy(std::array<int, 3> e_eV,
 
             myMods[i] = interpolateTrim(&myMod1, &myMod2, energy[i], trim1,
                                         trim2, trimbits);
+            // gaincaps
+            if (myMod1.reg != myMod2.reg) {
+                throw RuntimeError("setAllThresholdEnergy: gaincaps do not "
+                                   "match between files for energy (eV) " +
+                                   std::to_string(energy[i]));
+            }
+            myMods[i].reg = myMod1.reg;
         }
     }
 
@@ -357,6 +377,11 @@ void Module::setAllThresholdEnergy(std::array<int, 3> e_eV,
         for (int i = 0; i < myMod.nchan; ++i) {
             myMod.chanregs[i] = myMods[i % 3].chanregs[i];
         }
+        // gain caps
+        if (myMods[0].reg != myMods[1].reg || myMods[1].reg != myMods[2].reg) {
+            throw RuntimeError("setAllThresholdEnergy: gaincaps do not "
+                               "match between files for all energies");
+        }
     }
 
     myMod.reg = isettings;
@@ -3330,9 +3355,9 @@ sls_detector_module Module::interpolateTrim(sls_detector_module *a,
             dacs_to_copy.end(),
             {E_SVP, E_SVN, E_VTGSTV, E_RXB_RB, E_RXB_LB, E_VCN, E_VIS});
         // interpolate vrf, vcmp, vcp
-        dacs_to_interpolate.insert(
-            dacs_to_interpolate.end(),
-            {E_VTR, E_VRF, E_VCMP_LL, E_VCMP_LR, E_VCMP_RL, E_VCMP_RR, E_VCP, E_VRS});
+        dacs_to_interpolate.insert(dacs_to_interpolate.end(),
+                                   {E_VTR, E_VRF, E_VCMP_LL, E_VCMP_LR,
+                                    E_VCMP_RL, E_VCMP_RR, E_VCP, E_VRS});
     } else {
         dacs_to_copy.insert(dacs_to_copy.end(),
                             {M_VCASSH, M_VRSHAPER, M_VRSHAPER_N, M_VIPRE_OUT,
diff --git a/slsReceiverSoftware/src/Implementation.cpp b/slsReceiverSoftware/src/Implementation.cpp
index 0fdcee058..fae4c1180 100644
--- a/slsReceiverSoftware/src/Implementation.cpp
+++ b/slsReceiverSoftware/src/Implementation.cpp
@@ -1466,6 +1466,21 @@ void Implementation::setTenGigaEnable(const bool b) {
 
         generalData->SetTenGigaEnable(b);
         SetupFifoStructure();
+
+        // datastream can be disabled/enabled only for Eiger 10GbE
+        if (detType == EIGER) {
+            if (!b) {
+                detectorDataStream[LEFT] = 1;
+                detectorDataStream[RIGHT] = 1;
+            } else {
+                detectorDataStream[LEFT] = detectorDataStream10GbE[LEFT];
+                detectorDataStream[RIGHT] = detectorDataStream10GbE[RIGHT];
+            }
+            LOG(logINFO) << "Detector datastream updated [Left: "
+                         << sls::ToString(detectorDataStream[LEFT])
+                         << ", Right: "
+                         << sls::ToString(detectorDataStream[RIGHT]) << "]";
+        }
     }
     LOG(logINFO) << "Ten Giga: " << (tengigaEnable ? "enabled" : "disabled");
     LOG(logINFO) << "Packets per Frame: " << (generalData->packetsPerFrame);
@@ -1532,9 +1547,9 @@ bool Implementation::getDetectorDataStream(const portPosition port) const {
 void Implementation::setDetectorDataStream(const portPosition port,
                                            const bool enable) {
     int index = (port == LEFT ? 0 : 1);
-    detectorDataStream[index] = enable;
-    LOG(logINFO) << "Detector datastream (" << sls::ToString(port)
-                 << " Port): " << sls::ToString(detectorDataStream[index]);
+    detectorDataStream10GbE[index] = enable;
+    LOG(logINFO) << "Detector 10GbE datastream (" << sls::ToString(port)
+                 << " Port): " << sls::ToString(detectorDataStream10GbE[index]);
 }
 
 int Implementation::getReadNRows() const { return readNRows; }
diff --git a/slsReceiverSoftware/src/Implementation.h b/slsReceiverSoftware/src/Implementation.h
index 442f1b4db..757d64d05 100644
--- a/slsReceiverSoftware/src/Implementation.h
+++ b/slsReceiverSoftware/src/Implementation.h
@@ -356,6 +356,7 @@ class Implementation : private virtual slsDetectorDefs {
     bool quadEnable{false};
     bool activated{true};
     std::array<bool, 2> detectorDataStream = {{true, true}};
+    std::array<bool, 2> detectorDataStream10GbE = {{true, true}};
     int readNRows{0};
     int thresholdEnergyeV{-1};
     std::array<int, 3> thresholdAllEnergyeV = {{-1, -1, -1}};
diff --git a/slsSupportLib/include/sls/versionAPI.h b/slsSupportLib/include/sls/versionAPI.h
index 9b9902df8..c1723fbcb 100644
--- a/slsSupportLib/include/sls/versionAPI.h
+++ b/slsSupportLib/include/sls/versionAPI.h
@@ -12,4 +12,4 @@
 #define APIJUNGFRAU 0x220203
 #define APIMYTHEN3 0x220203
 #define APIMOENCH 0x220203
-#define APIEIGER 0x220204
+#define APIEIGER 0x220207